اختلال خواب در حال حاضر در افراد مسن با سابقه طول عمر افسردگی همراه با افزایش ارتباط در شبکه حالت پیش فرض است

Current sleep disturbance together with depression is associated with distinct abnormalities in DMN functioning incorporating regions responsible for self-reflection and declarative memory processes. Impaired sleep is associated with increased connectivity between these regions. Future studies may augment these findings with complementary imaging techniques including cortical thickness and diffusion tensor imaging, as well as high density electroencephalogram recording.