Exposure to adverse childhood experiences may heighten adolescents' sensitivity to stress, which influences their psychological adjustment over their lifetimes. Some research indicates that serotonergic genetic variation moderates how environmental stressors impact psychological adjustment. However, there are recognized limitations in examining gene-environment interactions using only single polymorphisms.

The present study employed a multilocus genetic profile score (MGPS) approach to measure serotonergic genetic variations and examines their interaction with childhood abuse and friendship quality as predictors of the outcomes of psychological adjustment (depressive symptoms and sleep problems) in an adolescent sample (14.15 ± 0.63 years; N = 525).

Serotonergic genetic factors moderated stress sensitivity induced by adverse childhood experiences. Adolescent psychological adjustment appeared to result from interactions between genetics and the environments. These findings were further supported by rigorous significance testing and sensitivity analyses.

The results highlight the strong utility of using MGPS to investigate gene-environment-environment interactions related to adolescent psychological adjustment.

Prior research has established associations among screen time, depressive symptoms, and sleep. However, the nuances of these associations, particularly regarding directionality and sex-specific differences among early adolescents, remain insufficiently understood. This study aimed to investigate sex differences in the longitudinal associations among screen time, depressive symptoms, and sleep at the symptom level during early adolescence.

Our cohort consisted of 2987 students (1451 boys at T1; Mage = 10.52 years), who were assessed twice over six-month intervals. Sex-stratified analyses in the network associations among screen time, depressive symptoms, and sleep were examined via a cross-lagged panel network modeling approach.

The results revealed that depressive symptoms such as "feeling unloved" for boys and "sadness" for girls were the most central symptoms with the greatest influence on other symptoms. Furthermore, depressive symptoms such as "crying" and "loneliness" for boys and "self-hatred" and "loneliness" for girls may act as bridge symptoms, significantly forecasting excessive screen time after six months.

Our findings bolster the compensatory internet use theory by suggesting that screen time may function as a coping mechanism for managing depressive symptoms and sleep problems. These findings advance our comprehension of the evolving dynamics among screen time, depressive symptoms, and sleep across sexes over time. The development of targeted prevention and intervention strategies that accommodate these sex differences could be instrumental in curtailing the onset or intensification of problematic screen use among early adolescents.

Loneliness in adolescence is a serious threat to quality of life. The purpose of this study was to examine the association between loneliness and ease of communication with parents and friends, and whether the association was different for boys and girls.

The study used data from the Danish arm of the international Health Behaviour in School-aged Children (HBSC). The surveys in 2010, 2014 and 2018 included nationally representative samples of students in the age groups, 11-, 13- and 15-year-olds (n = 10,425). Loneliness was measured by one item and ease of communication with parents and friends by the HBSC Ease of Communication Measure. Multilevel multivariate logistic regression was applied to study the associations between ease of communication and loneliness. Stratified analysis and interaction analysis tested the modifying effect of sex on the associations.

The prevalence of loneliness wa 4.3% among boys and 7.6% among girls. There was a strong negative association between loneliness and ease of communication. Compared to participants who found it very easy to communicate with their parents, those who found it very difficult were more likely to feel lonely (OR: 7.64, 95% CI: 5.74-10.15). The association was stronger for girls (OR: 11.89 (8.30-17.02)) than for boys (OR: 3.70 (1.98-6.91)). Similarly, participants who found it very difficult to communicate with friends were more likely to feel lonely than those that found it very easy (OR: 7.71 (5.87-10.12)), again this was stronger among girls (OR: 11.96 (8.19-17.47)) than boys (OR: 4.33 (2.61-7.17)). Analyses of statistical interaction showed that sex was a strong additive effect modifier of these associations.

The study found a remarkably strong negative association between loneliness and ease of communication with parents and friends, especially for girls.

The present study examined the bidirectional relationships among mindful parenting, parent-child relationships, and child internalizing behaviors (e.g., anxiety, depression, and social withdrawal) using a longitudinal design. A total of 1,201 Chinese preschoolers (50.3 % boys; age: M = 3.90 years, SD = 0.78) were assessed through parent reports at two time points, one year apart. Cross-lagged panel analysis revealed that mindful parenting at T1 positively predicted parent-child relationships (β = 0.17, p < 0.001) and negatively children's internalizing behaviors (β = -0.07, p < 0.05) at T2. However, no evidence was found for the reverse relationship. This study also identified a bidirectional and negative associations between parent-child relationships and internalizing behaviors in preschooler (parent-child relationships → internalizing behaviors:β = -0.07, p < 0.05; internalizing behaviors → parent-child relationships: β = - 0.06, p < 0.05). Furthermore, the parent-child relationships mediated the effect of mindful parenting at T1 on child internalizing behaviors at T2. The mediating effect of the parent-child relationship was stronger at T2 than at T1, likely due to the gradual and cumulative benefits of mindful parenting over time. Child gender did not moderate these relationships. The findings highlight the role of mindful parenting in promoting child psychological development by enhancing parent-child relationships over time.

Despite high social acceptance and prevalence of harsh discipline in China, its long-term cascading effects on adolescent emotional/interpersonal challenges remain unclear.

This study examined whether peer attachment and depressive symptoms would be reciprocally related over time and how early harsh discipline influences these dynamics.

Data was drawn from a longitudinal study over a 9-year period. Parental harsh discipline was reported by both parents at Grade 1-3 (N = 403), and depressive symptoms and peer attachment were reported by adolescents at Grade 7-9 (N = 651).

The random intercept cross-lagged panel model was used to assess the reciprocal association between adolescents' depressive symptoms and peer attachment. Furthermore, the predictive effects of early parental harsh discipline were examined.

There was a significant association between adolescents' depressive symptoms and peer attachment at between-person level, and these two constructs were also predicted each other at within-person level expected for the path from peer attachment at Grade 7 to depressive symptoms at Grade 8. Paternal but not maternal early harsh discipline from Grade 1 to Grade 3 could drive the dynamic within-person relations between adolescents' depressive symptoms and peer attachment.

These findings reveal the antecedent or concurrent factors and their processes that account for early adolescents' depressive symptoms. Intervention targeted at reducing early parental harsh discipline and improving peer relationship quality may be beneficial for alleviating adolescents' depressive symptoms.

Objective: Social support is understood as a protective factor for mental health and emotional well-being, especially at school. The Multidimensional Scale of Perceived Social Support (MSPSS) is one of the most widely used tools worldwide to assess this construct. The main purpose of the present study was to validate the scores of the MSPSS in a large sample of non-clinical adolescents. Method: The sample consisted of 2,235 compulsory secondary education students in Spain (M age = 14.49, SD age = 1.76, age range 12-18 years, 52% female) obtained by stratified random sampling. Results: The model, consisting of three interrelated factors, showed the most adequate goodness-of-fit indices. The results support the measurement invariance of the MSPSS across sex, age, and sexual orientation. McDonald's omega reliability indices between .862-.934 were obtained. MSPSS scores were significantly and negatively associated with emotional and behavioral problems, depression, and suicidal behavior, and positively associated with life satisfaction. Conclusions: The MSPSS is a reliable instrument to assess social support through self-report in school settings. In this regard, assessing social support using this tool is particularly useful in programs promoting well-being or preventing mental health disorders.

Many young people experience at least subthreshold depression symptoms which impact their functioning. Yet, access to evidence-based help is limited, with barriers such as service thresholds, stigma, and lack of knowledge about mental health and available services. One way to ensure young people have access to free, early, immediate and anonymous help is through online self-help single-session interventions. This study aimed to qualitatively explore young people's perceptions of and attitudes towards these interventions.

Twenty-four young people (UK based, age 15-18) took part in qualitative semi-structured interviews which were hosted online and co-conducted with a young research team (N = 4, age 16-18), during which we described online single-session interventions and asked participants for their perspectives. Together with our young researchers, we analyzed the data using reflexive thematic analysis.

Three themes were generated: (1) Will it help, or won't it? Hope versus skepticism; (2) Why this approach? Benefits of single-session interventions for young people; and (3) Have you considered this? Logistics for implementation.

The current study highlights that whilst young people perceived there to be many benefits associated with online single-session interventions, including anonymity, easy access, and lack of disclosure, they expressed doubts regarding sufficiency and ability to address severe mental health problems. Despite this, the potentially preventative effects during the early stages of help-seeking were highlighted, alongside single-session interventions acting as a gateway to further help-seeking and support. However, logistical considerations should also be reflected upon when developing online single-session interventions, including where they are advertised, age appropriateness, and how to demonstrate trustworthiness.

Background/Objectives: Adolescence is a critical period for mental health, with depression increasing rapidly and often leading to lifelong consequences. In recent decades, the prevalence of elevated depressive symptoms among adolescents has steadily risen, making it a significant public health concern. While research supports the benefits of mindfulness-based practices in reducing adolescent depressive symptoms, the role of trait mindfulness remains underexplored. Although some studies suggest a link between trait mindfulness and lower depressive symptomatology, a longitudinal perspective could provide deeper insights into this relationship. Given adolescents' heightened vulnerability to mental health issues, understanding the potential causal link between trait mindfulness and depression is crucial for both prevention and intervention efforts. Methods: This study examines the relationship between mindfulness and depression in a three-wave longitudinal study of 1618 secondary school students (Males: N = 671, M = 16.4 years, SD = 0.60; Females: N = 947, M = 16.3 years, SD = 0.65) using a random intercept cross-lagged panel model. Results: Findings indicate that mindfulness and depression share a substantial proportion of variance (r = 0.48) at the stable trait level, suggesting that sustained attentional focus, a hallmark of mindfulness, is consistently associated with fewer depressive symptoms. At the within-person level, momentary deviations from stable mindfulness levels in the first and second waves were linked to lower depressive symptoms in subsequent waves (β = -0.21, p = 0.016; β = -0.44, p = 0.03, respectively). These findings suggest that even temporary increases in mindfulness may provide additional protection against depression. Conclusions: Overall, the results suggest that trait mindfulness is associated with a reduced risk of developing depressive symptoms at both the between-person and within-person levels. Specifically, adolescents with higher stable levels of mindfulness tend to report fewer depressive symptoms over time, and even momentary increases in mindfulness beyond an individual's typical level are linked to reductions in subsequent depressive symptoms. These findings highlight the potential of mindfulness-based interventions in mitigating adolescent depression and underscore the importance of cultivating mindfulness as a protective factor during this critical stage of development.

Objective: The study aimed to investigate the association between adolescents' subjective well-being and parenting, as well as the moderating role of peer relationships between the negative aspects of parenting and subjective well-being.Method: Adolescents (n = 331) attending Junior High School and High School (aged 12-18 years) in the broader area of Attica, Greece, participated in the study. Participants completed the Berne Questionnaire of Subjective Well-Being/Youth Form, the 40-item Egna Minnen Beträffande Uppfostran Child Version (EMBU-C) questionnaire (for ages 7-16 years), and the Friendship Quality Scale.Results: There was a positive association between parental emotional warmth and adolescents' satisfaction, as well as between parental rejection and adolescents' ill-being. Furthermore, closeness to friends moderated the association between adolescents' ill-being and rejection by mothers and fathers. Girls and older adolescents had higher scores in the negative factors of subjective well-being, while girls scored higher in all friendship factors. Finally, based on adolescents' perceptions, mothers had significantly higher scores than fathers in all parenting variables.Conclusions: Findings highlight the significance of the implementation of tailored interventions in schools and families for promoting adolescents' well-being.

Although friendship is a key source of support and intimacy for adolescents, adolescent friendships can also involve victimization, which can be harmful to youth well-being. To date, our understanding of victimization in friendship has been limited by a lack of measures that comprehensively capture the variety of negative behaviors occurring in this relationship. This study outlines the development and preliminary validation of the Friendship Victimization Scale for Adolescents (FVS-A), which assesses victimization and controlling behaviors in adolescent friendships. Adolescents (N = 706, Mage = 15.93, SD = 1.67; 62.3% cisgender girls, 33.7% cisgender boys) from high schools in Canada completed the FVS-A and other measures in the fall of 2019. The factor structure and psychometric properties of the measure were examined. The FVS-A demonstrated excellent internal consistency and a 3-factor structure (relational victimization, physical/verbal victimization, controlling behavior). There was evidence for demographic differences such that cisgender girls reported more overall friendship victimization, as well as relational victimization and control, than did cisgender boys. Greater friendship victimization was associated with greater dating victimization and gender-based bullying and was uniquely associated with greater depressive symptoms after accounting for these other types of victimization. Findings suggest that friendship victimization is common among adolescents. The results provide evidence for the utility of the FVS-A as a measure of an understudied source of interpersonal risk. Future work is needed to understand the long-term implications of friendship victimization and to elucidate the temporal associations between friendship victimization and other indicators of psychosocial adjustment.

To evaluate associations between peer relationship factors (i.e., quality and quantity) and mental and physical health outcomes in youth with spina bifida (SB).

One hundred and forty youth with SB (Mage = 11.43; 53.6% female) were recruited as part of a larger longitudinal study. Families of youth with SB were invited to ask the child's closest friend to participate. The study included questionnaire (youth- and parent-report) and observational peer interaction data.

Observational peer interaction data were associated with mental and physical health in youth with SB. The number of friends was negatively associated with withdrawn/depressed behavior. Self-reported friendship quality and peer emotional support were not associated with physical health outcomes in youth with SB. However, peer emotional support was positively associated with emotional quality of life.

Friendship quality, particularly observed peer interaction characteristics, was associated with better mental and physical health adjustment. The quantity of friendships was not associated with physical health outcomes but was associated with mental health outcomes. Findings have implications for clinical interventions geared toward improving social functioning in youth with SB.

Feelings of affection (i.e., fondness and intense positive regard) are a hallmark of close relationships. Existing studies have often examined affection as a trait or behavior, but rarely as an emotional experience in social interactions. In two dyadic observational interaction studies (total N = 314 individuals), 49 US-based married couples (age range: 21-65) and 108 friendship dyads (age range: 15-26) engaged in two naturalistic 10-min conversations about (a) a topic of disagreement (conflict conversation) and (b) something they enjoyed doing together (pleasant conversation) and reported on their subjective emotional experiences (e.g., affection, using an emotion checklist following each conversation) and relationship satisfaction. Conversation transcripts were analyzed using natural language analysis. Results showed that experiences of affection were most strongly associated with experiences of compassion, amusement, and excitement, as well as with less anger, and were unrelated to most other negative emotions. Natural language analysis further showed that greater positive (but not negative) emotional tone was associated with greater affection (especially among friends in the pleasant conversations). Levels of affection were consistently higher in pleasant versus conflict conversations and similar across marital versus friendship interactions. Finally, experiences of affection were associated with greater relationship satisfaction for friends across conversations and for spouses (women) in the pleasant conversation. These findings contribute to our understanding of affection as a foundational emotional experience in close relationships and highlight avenues for future research.

The online version contains supplementary material available at 10.1007/s42761-024-00277-7.

The main objective of this rapid systematic review was to examine how the COVID-19 pandemic impacted peer relationships for adolescents (10-25 years of age) around the globe. We focused on four indices of peer relationships: (1) loneliness, (2) social connectedness, (3) social support, and (4) social media use. In addition, we examined gender and age differences. Four databases (APA PsychInfo, PubMed, Scopus, and Web of Science) were searched for articles published from January 2020 to November 2022. A total of 96 studies (cross-sectional: n = 66, longitudinal: n = 30, quantitative: n = 67, qualitative: n = 12, mixed-methods: n = 17) met our inclusion criteria (empirical observational studies with data on at least one of the indices of interest, cross-sectional data on COVID-19-related experiences or longitudinal data collected during the pandemic, age range of 10-25 years, typically developing adolescents). We extracted data and conducted a narrative synthesis. Findings suggest that COVID-19 disruptions negatively impacted peer relationships for youth. Most studies reported either an increase in loneliness over the course of the pandemic or a positive association between loneliness and COVID-19-related experiences. Similar findings were observed for increased social media use as a means of continued communication and connection. Fewer studies focused on social support but those that did reported a decrease or negative association with COVID-19-related experiences. Lastly, findings suggest a mixed impact on social connectedness, which might be due to the strengthening of closer ties and weakening of more distant relationships. Results for gender differences were mixed, and a systematic comparison of differences across ages was not possible. The heterogeneity in measures of COVID-19-related experiences as well as timing of data collection prevented a more nuanced examination of short and more long-term impacts.

Previous research has established that the quality of peer relationships significantly impacts adolescents' physical and mental health. However, the relationship between peer conflict and cyberbullying perpetration remains insufficiently explored. Based on the General Aggression Model and the General Strain Theory, this study investigates the mediating role of depression and hostile attribution bias in the relationship between peer conflict and cyberbullying perpetration, as well as the moderating role of gender, aiming to offer a new perspective on understanding adolescent cyberbullying perpetration. Employing a two-wave survey design, the study encompassed 900 adolescents (Mage = 13.45, girls = 452), collecting data on peer conflict, depression, hostile attribution bias, and cyberbullying perpetration through self-reported questionnaires. The findings revealed that peer conflict at Time 1 (T1) significantly and positively predicted cyberbullying perpetration at Time 2 (T2). Depression and hostile attribution bias at T2 acted both individually and in a bidirectional chain as mediators between peer conflict at T1 and cyberbullying perpetration at T2. Gender differences were observed in the paths "peer conflict T1 → cyberbullying perpetration T2" and "depression T2 → cyberbullying perpetration T2." Specifically, compared to girls, boys who experienced peer conflict and depression were more likely to engage in cyberbullying perpetration. These findings not only theoretically expand the application of the General Strain Theory and the General Aggression Model, but also provide practical guidance for the prevention and intervention of cyberbullying perpetration among adolescents.

Previous studies have noted links between peer relationships and depressive symptoms, but few have explored the subtle internal connections and inherent directionalities of these associations. Undirected and Bayesian network analyses were utilized to explore the interrelationships among key constructs in this study, which focused on 802 Chinese rural children (Mage= 12.16 years, SD = 0.83, 46.13% boys). Undirected network analysis revealed that Self-hatred, Sadness, and Loneliness were central nodes within the networks of peer relationships and depressive symptoms. Mutual support, Friendship skills, and Popularity emerged as key nodes linking peer relationships with the network of depressive symptoms. Bayesian network analysis demonstrated that Sadness and Popularity act as triggering nodes within the network, which are ultimately leading to depressive symptoms such as Pessimism, School difficulty, Indecisiveness, and Feeling unloved. These findings provide supports for the development of targeted interventions to reduce depressive symptoms in rural children, with a focus on different aspects of peer relationship.

The growing number of primary studies and reviews on loneliness, and the multidisciplinary efforts to comprehend this complex phenomenon from various perspectives, underscore the heightened recognition of its impact on individual and societal well-being and health. To comprehensively assess the size and scope of this research field, we conducted a scoping review of 35 English-language reviews of primary studies on loneliness, published between 2001 and 2023. Focusing specifically on psychological research, these reviews covered a total of N = 1,089 studies, which were conducted between 1986 and 2022. In addition to providing a broad overview of the structure of the field, the present scoping review aimed to explore the methodological landscape of loneliness research, including data collection, sample demographics, and measures, and to present key topics and evidence in the field. By deepening the understanding of loneliness and identifying data gaps and methodological challenges, our analyses provide critical insights for future research endeavors, thereby fostering advances in the field.

Background/Objectives: The relevance of adult attachment security for physical and emotional wellbeing is increasingly evident. Developing a better understanding of the interpersonal antecedents of secure attachment in childhood and adolescence could enable opportunities for its promotion when attachment styles are more easily modifiable. Methods: Data from 3648 participants in a longitudinal birth cohort study were examined. At 21 years, participants completed the confidence (in self and others) subscale of the Attachment Style Questionnaire, a measure of attachment security. Path analysis was used to longitudinally examine the influence of maternal and child-reported interpersonal variables at birth, 5, and 14 years on attachment security in early adulthood. Results: Two pathways were identified. Firstly, child and family social relations at birth and 5 years predicted attachment security via the number of the child's close friends at 14 years (β = 0.11, p < 0.001). Secondly, attuned caregiving at 14 years predicted attachment security via the recalled experiences of parental care up to 16 years, measured at 21 years (β = 0.28, p < 0.001). Greater adolescent family satisfaction directly predicted increased attachment security in early adulthood (β = 0.10, p < 0.001). Conclusions: Child and family social relationships from birth and throughout childhood and adolescence, along with attuned caregiving, led to increased attachment security in early adulthood. Public health and policy initiatives aimed at strengthening social support systems for caregivers and their children throughout childhood, and increasing the uptake of parenting programmes aimed at strengthening attuned caregiving, may lead to long-term improvements in the attachment security of offspring.

Co-rumination, characterized by excessively discussing problems and dwelling on negative affect within a dyadic friendship, has been associated with adolescents' symptoms of depression, anxiety and perceived stress-collectively referred to as psychological distress. This study explored whether co-rumination moderates the association between perceived best friend support and psychological distress.

The study included 187 adolescents (52.9% girls; 88.0% Dutch ethnic background) recruited from two cohorts between March 2017 and July 2019. Assessments took place at two time points: symptoms of depression, anxiety, and perceived stress were assessed via self-report measures at the final grade of primary school (T1; Mage = 11.8 years) and in secondary school (T2; Mage = 13.3 years). Co-rumination and perceived best friend support were measured via self-report in secondary school.

Findings indicate that best friend support was associated with lower psychological distress and conversely, co-rumination was associated with higher psychological distress while adjusting for prior distress symptoms. Moderation analysis revealed that moderate levels of co-rumination (relative to the samples mean) decreased the positive effects of perceived best friend support on symptoms of depression (B = 0.06, SE = 0.03, 95% CI [0.00, 0.11], p = 0.05, β = 0.11) and perceived stress (B = 0.06, SE = 0.01, 95% CI [0.03, 0.08], p = 0.000, β = 0.10). At very high levels of co-rumination (relative to the samples mean), best friend support exacerbates perceived stress.

This study underscores the potential negative impact of co-rumination in supportive peer relationships and recommends promoting awareness of the risk of co-rumination while building a repertoire of (dyadic)emotion regulation strategies.

From early adolescence, girls face greater risk of experiencing low mood and anxiety relative to boys, with recent evidence that this may be worsening. There is a paucity of mental health research that meaningfully progresses understanding of these gender disparities, including that engages adolescent girls' own perspectives, limiting our ability to direct further research and enhance intervention approaches.

We examined low mood and anxiety from the perspective of adolescent girls, asking: What do adolescent girls perceive to be causing their population's high rates of low mood and anxiety?

We adopted a co-produced qualitative design, guided by ecological systems theory, conducting focus groups in 2022 with 32 adolescent girls aged 16 to 18 years in England. Data were analysed using reflexive thematic analysis.

Participants framed low mood and anxiety among adolescent girls as "normal", and discussed potential explanations including persistent reiteration and expectation of gendered norms, intense educational pressures in ways that can be gendered, difficulties within peer relationships, and comparison and insecurity in social media contexts. Throughout, participants highlighted how complex these issues are, including nuances around individual differences, sociodemographic contexts, and societal contexts.

The study offers a critically important contribution to evidence on gendered inequalities in low mood and anxiety, drawing attention to the interwoven and complex nature of girls' lives and illuminating various aspects that would benefit from greater research. The insights gained through exploration with girls themselves hold policy and practical relevance to enhance systems to meet girls' needs.

Friendships of adolescent girls play a significant role in providing socio-emotional support and enabling the attainment of developmental tasks. The present exploratory paper focuses on an aspect of close friendships that has yet to be widely examined, which we described as the Adverse Dyadic Friendship (ADF). This is a friendship whose negative elements are perceived from the distance of time as outweighing its positive ones.

To examine the features of ADF, a qualitative study based on retrospective data obtained from 34 young adult females (Mage = 31.14, SD = 5.59) was conducted in Israel. Using a semi-structured online questionnaire, participants were asked to address a specific close same-sex friendship they had during their middle or high school years that has negatively affected them.

The emerging themes (such as negative feelings and various coping strategies) suggest that ADF comprises an intense emotional condition, having implications on the development of individuals' self-perception. The consequences of ADF may be detrimental to adolescent girls' self-worth and friendship skills and extend into their adult life.

Whereas the developmental literature emphasizes the positive aspects of friendship for adolescent girls, this study points out how ADF can also become a developmental challenge for them: on the one hand, ADF comprises a risk factor for their socio-emotional development, and on the other hand, presents an opportunity to learn and introduce changes in their lives. The main contribution of this paper is that ADF can stimulate further research on the complex aspects of friendship between adolescent girls.

This study investigated the mediating role of core self-evaluation (CSE) in the relationship between the perception of peer relationship quality and loneliness among university students during the COVID-19 pandemic. An online survey was conducted with 462 university students (mean age: 20.7 ± 1.56 years; age range: 18 to 25 years) using the Peer Relationships Satisfaction Scale, Core Self-Evaluation Scale, and UCLA Loneliness Scale. The results revealed a significant negative correlation between perceived peer relationship quality and loneliness, as well as between CSE and loneliness. Core self-evaluation accounted for 36.23% of the total effect of peer relationship quality on loneliness. Additionally, female students reported higher levels of loneliness than male students, and students from rural areas experienced greater loneliness than their urban counterparts. The study concluded that fostering high-quality peer relationships and enhancing core self-evaluation could be effective strategies for reducing loneliness among university students.

Substantial research has demonstrated the strong influence of family factors on adolescent depressive symptoms. However, the mechanisms underlying this relationship, particularly the moderating effects of sex and sexual orientation, remain unclear.

This study aimed to investigate the direct and indirect effects of family intimacy on depressive symptoms among adolescents, while examining the mediating role of social inclusion and anxiety disorders. Furthermore, it explored how these effects are moderated by sex and sexual orientation.

Data from the nationwide School Health Promotion Study in Finland were used (N = 155,166; adolescents aged 14-17 years). The analysis included a multiple mediation model to evaluate the pathways linking family intimacy to depressive symptoms, through social inclusion and anxiety disorders. Moderation analyses were conducted to explore the moderating effects of sex and sexual orientation on these pathways.

Family intimacy had a significant direct negative effect on depressive symptoms. Social inclusion and anxiety disorders were identified as mediators, with social inclusion serving as a significant buffer to depression. Moderation analysis revealed that these effects were stronger for non-heterosexual adolescents and varied by sex, with females showing a stronger impact of social inclusion on depressive symptoms, whereas males were more influenced by the pathway through anxiety disorders.

The findings highlight the crucial roles of social inclusion and family intimacy in mitigating depressive symptoms among adolescents. Interventions should prioritize enhancing social inclusion, particularly for non-heterosexual adolescents, and tailor strategies based on sex differences to optimize outcomes.

Interpersonal outcomes and mental health problems are closely associated. However, their reciprocal influence has not been directly examined while considering the temporal stability of these constructs, as well as shared and unique variance associated with internalising, externalising and attention problems. Using random intercept cross-lagged panel models (RI-CLPM), we tested the hypotheses that negative bidirectional associations at the between-person and negative cross-lagged effects at the within-person level would emerge between interpersonal outcomes (friendship quality and perceived popularity) and mental health problems (i.e. general psychopathology factor) during preadolescence.

Participants (n = 918) were from the NICHD Study of Early Child Care and Youth Development. Psychopathology, consisting of a general psychopathology factor (p-factor) and three specific factors (internalising, externalising and attention problems), was derived from mother-reported Child Behaviour Checklist symptoms. Friendship quality was assessed using the self-reported Friendship Quality Questionnaire. Popularity was assessed using teacher-reported popularity ranking. Four RI-CLPM were estimated to examine the associations between interpersonal outcomes and psychopathology at between- and within-person levels across four timepoints (mean ages 8-11).

At the between-person level, popularity scores, but not friendship quality, were negatively associated with p-factor scores (β = -.33). At the within-person level, we found (i) p-factor scores at age 9 negatively predicted friendship quality and popularity at age 10, but not at other ages (β = -.16 to -.19); (ii) specific externalising factor scores at age 10 negatively predicted friendship quality at age 11 (β = -.10) and specific internalising factor scores at ages 8 and 9 positively predicted friendship quality at ages 9 and 10 (β = .09-.12) and (iii) popularity at age 10 negatively predicted specific internalising factor scores at age 11 (β = -.12).

Psychopathology was found to influence interpersonal outcomes during preadolescence, while the reverse effects were less readily observed, once between-person level effects were accounted for.

This study synthesized the literature from international and Chinese databases regarding the associations between loneliness and the quality of affective teacher-student relationships (TSRs) among children and adolescents ages 5.34-17.09 years. Forty-seven studies published between 2005 and 2023 were included in a cross-sectional meta-analysis using a multi-level approach. Moderators of the relationship, including culture, study, sample, and measurement characteristics, were also examined. Findings indicated a significant medium effect size (r = -0.226) between loneliness and TSRs with effects moderated by students' gender and national cultural background (i.e., Hofstede's Power Distance and Long-term/Short-term Orientation Dimensions). Longitudinal meta-analyses were performed with six studies by using cross-lagged regression to investigate the prospective effects between these two variables. Results showed that loneliness predicted subsequent TSRs (β = -0.1661) and TSRs predicted subsequent loneliness (β = -0.0917), indicating a reciprocal prospective relationship over time. The findings emphasize not only the role of teachers in students' experiences of loneliness, but also the role that loneliness has on an individual's relationships with others. Recommendations for intervention include (a) increasing teacher awareness of student loneliness and (b) ensuring that any school-based work considers the specific social-cultural perspective.

Depression in adolescents has been linked to poor life outcomes, including suicidal ideation, peer victimization, and fewer friendships. Less is known about how depressed adolescents perceive their peer interactions. Based on the depression-distortion model, we expected that adolescents with depressive symptoms misperceive their social ties by being less likely to like some peers, and more likely to dislike other peers. An Italian dataset about adolescent relationships was used, including 275 first-year secondary school students (M age = 11.80, 46% female) in 12 classrooms across nine schools. Adolescents were asked to nominate classmates they liked and disliked. Longitudinal social network analyses (stochastic actor-oriented models) were conducted, including structural network effects (reciprocity, transitivity, indegree-popularity) and covariates such as gender, immigrant origin, and highest parents' education level. The results indicated that adolescents with depressive symptoms were less likely to send liking nominations, and conversely, they were more likely to send disliking nominations than non-depressed classmates. Interestingly, adolescents with depressive symptoms were not more disliked or less liked by their peers. These findings seem to support the depression-distortion model by suggesting that, compared to non-depressed peers, adolescents with depressive symptoms misperceive their relationships by overstating negative relationships and underestimating positive ones.

Background: Reducing anxiety and depression in adolescents is a global health priority. Personal and social resources (e.g., hobbies and socialising) may reduce distress. Yet, there is insufficient understanding of how adolescents use such resources to reduce distress.Objective: To identify resources that reduced distress in the everyday lives of adolescents and whether resource use differed according to symptoms of anxiety and depression.Methods: The experience sampling method was used, a longitudinal method requiring participants to report on context and mood at randomly selected moments across a week. A total of 5 558 reports were contributed by 151 adolescents, including 90 with symptoms of anxiety and/or depression. The study was conducted in the poorest neighbourhoods of Bogotá, Buenos Aires, and Lima.Results: Multi-level modelling indicated that using resources was significantly associated with less nervousness and sadness. Adolescents with symptoms of anxiety and/or depression were less likely to use some resources (e.g., sport). Cross-level interactions showed the efficacy of resources differed according to the severity of symptomatology. For adolescents with symptoms of anxiety and depression, some resources (e.g., peer support) improved mood, while others (e.g., music listening) did not.Discussion: Personal and social resources are important for reducing distress in the everyday life of adolescents, giving insight into potential interventions to help mitigate symptoms of anxiety and depression before escalation. Further research could assess the quality of experiences (e.g., appraisal) to deepen understanding of how engagement promotes resilience.Conclusions: Care must be taken when recommending resource use, since some forms (e.g., music listening) may be unhelpful to adolescents with symptoms of anxiety and depression.

This study examines the mediating role of cognitive flexibility in the relationship between home-school co-education (H-SCE) and depressive symptom among vocational college students in urban and rural areas of China.

Utilizing the Theory of Overlapping Spheres of Influence, this research explores how H-SCE influences depressive symptom, considering cognitive flexibility as a key mediating factor. The study utilized established scales, including the Inventory of Parent and Peer Attachment (IPPA) for parent-child relationships, the Student-Teacher Relationship Scale (STRS), the Cognitive Flexibility Inventory (CFI), and the Center for Epidemiologic Studies Depression Scale (CES-D10).

A total of 1090 valid questionnaires were analyzed, revealing a significant negative correlation between H-SCE and depressive symptom. Cognitive flexibility was found to partially mediate this relationship, suggesting that enhanced cognitive adaptability, fostered through effective H-SCE, can reduce depressive symptom by helping students better cope with stressors.

These findings underscore the importance of fostering strong collaboration between families and schools to enhance cognitive resilience and mitigate psychological challenges faced by vocational students, providing a foundation for targeted interventions to promote mental well-being.

Leveraging data from a longitudinal study of Chinese families (n = 364), this research aims to understand the role of secure base script knowledge as a cognitive mechanism by which early caregiving experiences inform adolescents' friendship quality and feelings of loneliness. Results showed that observed maternal sensitivity at 14 and 24 months old was negatively associated with adolescents' self-reported conflicts with close friends (β = -0.17, p = 0.044) at 15 years old, and this association was partially mediated by their secure base script knowledge assessed at 10 years old. Further, secure base script knowledge moderated the link between adolescents' friend conflict and feelings of loneliness (β = -0.15, p = 0.037). The results support a cognitive script perspective on the association between early caregiving experiences and later socio-emotional adjustment. Furthermore, this study adds to the developmental literature that has previously focused on more stringent and authoritarian aspects of parenting in Chinese families, thereby contributing to our understanding of how sensitive and supportive parenting practices contribute to socio-emotional development outside of Western contexts. RESEARCH HIGHLIGHTS: Maternal sensitivity during infancy and toddlerhood has a long-term association with adolescents' friendship quality and adolescents' secure base script partially explains the association. First evidence to demonstrate that the secure base script in attachment relationships mediates the association between early maternal caregiving and socio-emotional development in Chinese adolescents. Adolescents lacking secure base script knowledge are particularly vulnerable to feelings of loneliness when facing high levels of conflict in close friendships.

Early-life social experiences significantly influence later-life health, yet the association between childhood peer relationships and dementia, as well as the underlying mechanisms, remains underexplored. This study aimed to investigate this association and the mediating roles of social disengagement and loneliness.

Leveraging data from 7574 adults aged ≥ 60 in the China Health and Retirement Longitudinal Study (2011-2018), we employed marginal structural models to assess the associations between childhood peer relationships and dementia risk in later life. Inverse odds ratio weighting was used to examine the mediating roles of formal and informal social disengagement and loneliness.

Individuals with deficits in childhood peer relationships had a higher risk of dementia (odds ratio [OR], 1.21; 95% confidence interval [CI], 1.10-1.34) compared with those with more positive experiences. This association was partially mediated by formal social disengagement (proportion mediated, 21.44%; 95% CI, 12.20%-40.94%), loneliness (proportion mediated, 22.00%; 95% CI, 13.42%-33.82%), and their combination with informal social disengagement (proportion mediated, 41.50%; 95% CI, 30.76%-66.07%). Informal social disengagement alone did not show a significant mediating effect.

In this cohort study of older Chinese adults, negative childhood peer relationship experiences were associated with an elevated risk of dementia in later life. Formal social disengagement and loneliness partially mediated this association. These findings underscore the importance of fostering positive social relationships in early life and suggest potential psychosocial strategies to mitigate dementia risk in older adults due to childhood peer relationship deficits.

Loneliness is increasingly emerging as a significant public health problem in children and adolescents. Predicting loneliness and finding its risk factors in children and adolescents is lacking and necessary, and would greatly help determine intervention actions.

This study aimed to find appropriate machine learning techniques to predict loneliness and its associated risk factors among schoolchildren.

The data were collected from an ongoing prospective puberty cohort that was established in Chongqing, Southwest China. This study used 822 subjects (46.84% boys, age range: 11-16) followed in 2019. Five models, (a) random forest, (b) extreme gradient boosting (XGBoost), (c) logistic regression, (d) neural network, and (e) support vector machine were applied to predict loneliness. A total of 39 indicators were collected and 28 predictors were finally included for prediction after data pre-processing, including demographic, parental relationship, mental health, pubertal development, behaviors, and environmental factors. Model performance was determined by accuracy and AUC. Additionally, random forest and XGBoost were applied to identify the important factors. The XGBoost algorithm with SHAP was also used to interpret the results of our ML model.

All machine learning performed with favorable accuracy. Compared to random forest (AUC: 0.87 (95%CI: 0.80, 0.93)), logistic regression (AUC: 0.80 (95%CI: 0.70, 0.89)), neural network (AUC: 0.80 (95%CI: 0.71, 0.89)), and support vector machine (AUC: 0.79 (95%CI: 0.79, 0.89)), XGBoost algorithm had the highest AUC values 0.87 (95%CI: 0.80, 0.93) in the test set, although the difference was not significant between models. Peer communication, index of general affect, peer alienation, and internet addiction were the top four significant factors of loneliness in children and adolescents.

The results of this study suggest that machine learning has considerable potential to predict loneliness in children. This may be valuable for the early identification and intervention of loneliness.

Social cognitive deficits and social behavior impairments are common in major depressive disorder (MDD) and affect the quality of life and recovery of patients. This review summarizes the impact of standard and novel treatments on social functioning in MDD and highlights the potential of combining different approaches to enhance their effectiveness. Standard treatments, such as antidepressants, psychotherapies, and brain stimulation, have shown mixed results in improving social functioning, with some limitations and side effects. Newer treatments, such as intranasal oxytocin, mindfulness-based cognitive therapy, and psychedelic-assisted psychotherapy, have demonstrated positive effects on social cognition and behavior by modulating self-referential processing, empathy, and emotion regulation and through enhancement of neuroplasticity. Animal models have provided insights into the neurobiological mechanisms underlying these treatments, such as the role of neuroplasticity. Future research should explore the synergistic effects of combining different treatments and investigate the long-term outcomes and individual differences in response to these promising interventions.

Our paper explores in a large Romanian sample (2168 adolescents) the relational costs and benefits of the number of friends at school. Using the MEDCURVE procedure to test the non-linear mediation effects, our results show that psychological safety, bullying and negative relations mediate the association between the number of friends and depression and anxiety, while social acceptance and bullying mediate the association between the number of friends and academic self-efficacy. In general, our results show that the relational benefits of friendship tend to diminish as the number of friends increase, in general over 9 friends (depending on the relational state) and parents, teachers and school counselors should help adolescents manage their number of friends in order to prevent the relational costs associated with engaging in too many (superficial) friendships.

Adolescence is a developmental period in which social interactions are critical for mental health. While the onset of COVID-19 significantly disrupted adolescents' social environments and mental health, it remains unclear how adolescents have adapted to later stages of the pandemic. We harnessed a machine learning architecture of Long Short-Term Memory recurrent networks (LSTM) with gradient-based feature importance, to model the association among daily social interactions and depressive symptoms during three stages of the pandemic. A year before COVID-19, 148 adolescents reported social interactions and depressive symptoms, every day for 21 days. One hundred sixteen of these youths completed a 28-day diary after schools closed due to COVID-19. Seventy-nine of these youths and additional 116 new participants completed a 28-day diary approximately a year into the pandemic. Our results show that LSTM successfully predicted depressive symptoms from at least a week of social interactions for all three waves (r2 > .70). Our study shows the utility of using an analytic approach that can identify temporal and nonlinear pathways through which social interactions may confer risk for depression. Our unique analysis of the importance of input features enabled us to interpret the association between social interactions and depressive symptoms. Collectively, we observed a return to pre-pandemic patterns a year into the pandemic, with reduced gender and age differences during the pandemic closures. This pattern suggests that the system of social influences in adolescence was affected by COVID-19, and that this effect was attenuated in more chronic stages of the pandemic.

Friendship-related stress is an understudied factor that may explain variation in coping-motivated and socially-motivated drinking among emerging adults. This study examined chronic and episodic friendship stress as predictors of drinking levels and motivations among emerging adults transitioning to post-college life. College drinkers reported drinking motives and alcohol consumption daily for 30 days using an Internet-based diary in college and five years later (N = 897, 54.2% women, Mage = 24.6 at follow-up, 86.0% White). Post-college, participants completed by phone the UCLA-Life Stress Interview assessing chronic and episodic friendship/social life stress. Chronic friendship/social life stress was positively correlated with mean levels of post-college drinking-to-cope motivation and was negatively related to post-college heavy drinking and social drinking motivation. Emerging adults experiencing friendship stress are more likely to use alcohol as a coping mechanism, elevating their risk for alcohol-related problems. Those with low friendship stress may require public health interventions around the risks of heavy drinking.

Objective: Covid-19 has resulted in changes to college students' daily lives due to recommendations to socially distance. Social distance is likely to affect youths' peer relationships at a time when these relationships remain important for development. Participants and Methods: The current study utilized survey data to examine perceived changes in peer relationships and the association with behavioral health among 275 college students (Mage = 18.69, SD =.72) during the fall/spring of 2020-2021. Results: Quantitative results indicated that participants reported significant perceived decreases in peer support but did not report significantly worse quality of closest friendships. Qualitative responses from an open-ended survey question supported these quantitative results suggesting that although many participants perceived decreases in quality of relationships, there was also the perception that friendships became closer. Participants who perceived decreased peer relationship support and quality were more likely to report depressive symptoms and loneliness when compared to participants who perceived no changes.

This study aimed to assess the usefulness of the parent version of the KINDLR and the additional items of the Kiddy Parents questionnaire in the South-African context and to validate it as an appropriate tool for measuring health-related quality of life (HRQoL).

The ExAMIN Youth SA study was designed to investigate lifestyle behaviours, including psychosocial factors that may adversely impact on cardiovascular health of children. Construct validity was examined by using exploratory and confirmatory factor analysis, while internal consistency was tested by Cronbach's alpha. The final factor structure was confirmed by model fit indices.

The study included children (n = 1088) aged between 5 and 10 years in North-West, South Africa. The reliability coefficients of the original factors could not be reproduced in this data set, with the Cronbach's alphas ranging between 0.46 and 0.78. With exploratory factor analysis, including the additional items, our data supported a 7-factor structure with acceptable internal consistency (Cronbach's alpha: 0.68-0.79; Omega: 0.75-0.85) and acceptable model fit indices (CFI: 0.91; TLI: 0.90; RMSEA: 0.05; SRMR: 0.07). Two factors (emotional wellbeing and everyday functioning) further split into separate factors for positive and negative experiences related to each of these dimensions.

We confirmed a new factor structure of the parent version of the KINDLR and the additional items of the Kiddy Parents questionnaire, which can be used in the African context. Although the new factor structure has great overlap with the original structure, some items did not contribute to the factors as expected. Language and cultural differences between the original German group and the current South African study group resulted in a different factor structure.

To deepen the development of positive affect during early adolescence and shed new light on its predictors, this study adopts an exploratory network approach to first identify the main domains that describe the variability of children's psychological, environmental, and behavioral characteristics, and then use these domains to longitudinally predict positive affect and its development within a latent growth framework. To this aim, we considered 10,904 US participants (9 years old at baseline; 13 years old 42 months later), six measurement occasions of positive affect, and 46 baseline indicators from the ABCD study. Our results not only confirm that positive affect declines between 9 and 13 years old, but also show that among the five domains identified (behavioral dysregulation, cognitive functioning, psychological problems, supportive social environment, and extracurricular activities), only a supportive social environment consistently predicts positive affect. This is crucial for practitioners and policymakers, as it can help them focus on the elements within our complex network of psychological, social, and environmental variability.

Although family and school experiences play an important role in adolescents' adjustment during the transition to high school, most prior studies investigated the effects of these experiences in isolation; their joint implications for both adolescents' concurrent and long-term adjustment outcomes are less clear, and the potential role of individual characteristics within such associations remains understudied. Based on 525 10th graders (Mage = 15.48, SDage = 0.71, 43.6% boys) who participated in a longitudinal study, the present research aimed to identify distinct family and school experience profiles among first-year high school students and examine their associations with adolescents' internalizing problems and externalizing problems, both concurrently and 18 months later. Latent profile analysis revealed four distinctive profiles: thriving, low resources-moderate family risk, developmental stress-high parental conflicts, and developmental stress-high peer victimization profiles. The other three profiles (vs. the thriving profile) reported significantly higher levels of concurrent internalizing problems; while these differences diminished after 18 months. However, the enduring impacts of these profiles on internalizing problems persisted among adolescents with higher levels of environmental sensitivity. Additionally, adolescents characterized by two developmental stress profiles (vs. the thriving profile) exhibited significantly higher levels of externalizing problems both currently and longitudinally. Findings underscore the importance of identifying at-risk populations among adolescents during the transition to high school by including both family and school experiences when examining environmental influence on their adjustment, as well as the necessity to take individual environmental sensitivity into account when examining these associations.

Leadership in peer groups is an important issue in adolescent socioemotional development, yet it has received limited attention in research. This one-year longitudinal study examined peer group leadership and the roles of social, academic, and psychological characteristics in the dynamics of group leadership. Participants included 1061 Chinese students (initial mean age =11.17 years; SD = 6.98 months; 49.4% female). Data were collected from peer assessments, teacher ratings, and self-reports. The longitudinal social network analysis (SIENA) indicated that peer group leadership was fluid with leadership status evolving over time across groups in a hierarchical manner. Adolescents displaying higher social competence and aggression and lower shyness were more likely to become group leaders. Academic performance and loneliness were not significantly associated with the dynamics of peer group leadership. The results help understand peer group leadership and contributions of social behaviors to the attainment of leadership status in peer groups in early adolescence.

This study examines the extent to which depressive symptoms mediate the link between childhood friendship (CF) and physical function among middle-aged and older adults in China.

China Health and Retirement Longitudinal Study (CHARLS) data were used; specifically, CHARLS life history survey (conducted from June 1-December 31, 2014) and follow-up health survey (conducted from July 1-September 30, 2015) data were used. The Sobel test, Bootstrap test and multivariable logistic regression were performed to examine the mediating role of depressive symptoms (measured by the 10-item Center for Epidemiologic Studies Depression Scale) in the association between CF (measured by a standardized retrospective questionnaire) and physical function, which was measured by basic activities of daily living (BADL) disability, instrumental activities of daily living (IADL) disability, and grip strength.

A total of 12,170 participants aged 45 years or older were included in this cross-sectional study. After controlling for covariates, low-quality CF was associated with an increased prevalence of BADL disability (OR = 1.18; 95 % CI = 1.05-1.32), IADL disability (OR = 1.25; 95 % CI = 1.12-1.40), and low grip strength (OR = 1.21; 95 % CI = 1.09-1.34). The proportion of the mediating effect of depressive symptoms was 48 % for CF and BADL, 40 % for CF and IADL, and 11 % for CF and grip strength. Depressive symptoms and worse CF have a joint effect on BADL disability (OR = 3.30; 95 % CI = 2.82-3.85), IADL disability (OR = 3.52; 95 % CI = 3.03-4.09), and low grip strength (OR = 1.65; 95 % CI = 1.43-1.92).

Not all potential confounding factors (such as childhood behavioural problems, genetic factors, and memory function) were measured in the analysis, and there may have been recall bias in the retrospective collection of CF data.

Individuals with high-quality CF were more likely to have a decreased prevalence of impaired physical function in later life. Depressive symptoms acted as a mediator associated with the development of CF.

Social contexts (e.g., family, friends) are important in predicting and preventing loneliness in middle childhood (MC) and adolescence; however, these social contexts were disrupted during the COVID-19 pandemic. Comparison of social context factors that may differentially contribute to loneliness at each developmental stage (MC vs. adolescence) during the COVID-19 pandemic have been overlooked. This study examined longitudinal predictors of loneliness, including social contexts and COVID-19 impact, within MC (8-12y) and adolescence (13-17y). Parents reported on demographic information, and their children completed surveys on COVID-19 impact, loneliness, and family functioning using the COVID-19 Exposure and Family Impact Survey (CEFIS), the NIH Toolbox Loneliness (Ages 8-17) measure, and the PROMIS Family Relationships Short Form 4a measure, respectively. Regression models examined time one (T1; May-June 2020) predictors of time two (T2; November 2020-January 2021) MC child (n=92, Mage=10.03) and adolescent (n=56, Mage=14.66) loneliness. For the MC child model, significant predictors of higher loneliness included worse family functioning as well as higher COVID-19 impact and lower family income. On the other hand, higher adolescent loneliness was significantly predicted by not having married/partnered parents and was marginally significantly predicted by higher COVID-19 impact. The regression model with the full sample and interaction terms revealed no significant interactions, but that lower family functioning and higher COVID-19 impact were significant predictors of higher loneliness. Lower family income and lower in-person communication were marginally significant predictors of higher loneliness in the combined interaction model. Lastly, further exploratory mediation analyses displayed that family functioning significantly mediated the relationship between COVID-19 impact and T2 loneliness only for MC children and the full sample. Results support future interventions focused on optimizing family functioning to help mitigate MC loneliness in the context of adversity, such as a global pandemic.

Despite its implications for adjustment, little is known about factors that support co-rumination in friendships. The current multi-method, longitudinal study addressed this question with 554 adolescents (Mage = 14.50; 52% girls; 62% White; 31% Black; 7% Asian American) from the Midwestern United States in 2007-2010. Adolescents were observed talking about problems with a friend and reported on their outcome expectations for problem disclosures, relationship provisions during problem talk, and problem perceptions after problem talk. Participants reported on outcome expectations again 9 months later. Results indicate that the positive relationship provisions associated with co-rumination may outweigh negative problem perceptions in predicting adolescents' outcome expectations for problem disclosures over time. Implications for the potentially reinforcing nature of co-rumination are discussed.

The current study investigated how adolescents' loneliness relates to school connectedness, classmate support, teacher support, and offline and online communication with friends. We also examined the association between loneliness, physical health, and sleep. Data came from the Scottish Health Behavior in School-aged Children (HBSC). The total sample was 2983 adolescents (F = 1479 [49.6%]) aged 14-17 years (M = 15.66, SD = 0.39) from 117 secondary schools in Scotland. Results showed that (1) higher teacher support, classmate support, and offline contact with friends predicted lower levels of loneliness, (2) online friendship engagement predicted higher levels of loneliness, and (3) poor health and sleep were positively associated with loneliness. The study offers new findings, highlighting the role played by classmates/peers and teachers in reducing loneliness. Supporting previous research, we also found associations between loneliness, poor sleep, and worse physical health.

Early adolescence is a vulnerable period for emotional distress. Both emotion regulation and social connection to peers and family adults are understood to be associated with distress. However, existing longitudinal work has not explored these constructs jointly in a way that estimates their reciprocal relationships over adolescence. We present a three-wave random-intercepts cross-lagged panel model of reciprocal relationships between emotional distress, perceived emotion regulation, and social connections during early adolescence, among 15,864 participants from education settings in disadvantaged areas of England, over three annual waves (at ages 11/12, 12/13, and 13/14 years). Findings showed that emotional distress and perceived emotion regulation share a negative relationship over time, and that higher perceived emotion regulation predicts greater family connection in the initial stages of early adolescence (from age 11-12 to 12-13 years). Findings also indicated that connection to peers is positively associated with family connection, but also positively predicts slightly greater distress in the later stages of early adolescence (from age 12-13 to 13-14 years). Findings indicate a risk of negative spiral between emotional distress and perceived emotion regulation in early adolescence, and that social connection may not necessarily play the role we might expect in reducing distress.

Loneliness and depressive symptoms are prevalent among Finns.

This study, which analyzes nationwide data from 149,986 students aged 13-18 years in Finland, focuses on the mediating effects of social inclusion and loneliness in the association between school belonging and depressive symptoms.

The analysis of variance showed that boys reported higher levels of school belonging and social inclusion, whereas girls reported higher levels of loneliness and depressive symptoms. Mediation analysis showed that social inclusion and loneliness partially mediated the effect of school belonging on depressive symptoms, but that social inclusion's effect was much greater than loneliness's. By focusing on the moderating role of sex, it was discovered that social inclusion significantly mediated depressive symptoms in girls more than boys.

The importance of social inclusion in preventing depressive symptoms was highlighted in the discussion.

Depression in children and teens has been on the rise for several years. Recent increases in anxiety and loneliness, both contributors to the development of depression, are putting more young people at risk for chronic and comorbid mental health struggles. The use of hypnosis with depressed children offers the opportunity to target the identified skills depressed and anxious children need and is a modality clinicians should embrace. This article describes how to create hypnotic interventions focusing on improved emotional and cognitive management, better sleep, and the ability to make positive social connections. Such interventions serve to not only build the resources depressed children need for recovery, but also support a paradigm shift toward prevention in children and families.