Changes in the amplitude of low-frequency fluctuations in specific frequency bands in major depressive disorder after electroconvulsive therapy

Figure 4 Brain regions with significant alterations in amplitude of low-frequency fluctuations at slow-4 (0. 027-0.08 Hz) for pre- and post-electroconvulsive therapy. The red region indicates that the amplitude of low-frequency fluctuations in post-electroconvulsive therapy (ECT) patients was larger than that in pre-ECT patients. In contrast, the blue region represents pre-ECT patients that were larger than that in post-ECT patients.