Distinct convergent brain alterations in sleep disorders and sleep deprivation: a meta-analysis

A research team from Jülich, Germany, has conducted a comprehensive meta-analysis across 231 studies, revealing that chronic sleep disorders and short-term sleep deprivation impact entirely different regions of the brain. The study, led by Gerion Reimann and Dr. Masoud Tahmasian, was recently published in JAMA Psychiatry. The meta-analysis revealed that various chronic sleep disorders are associated with structural and functional changes in the anterior cingulate cortex, a region involved in reward, reasoning, and emotion processing; the right amygdala, involved in fear and negative emotion processing; and the hippocampus, a central brain hub for memory processing. In contrast, short-term sleep deprivation primarily affects the right thalamus—a region involved in regulating sensory input, motor function, body temperature, and pain perception. The brain network analyses also showed distinct patterns between chronic sleep disorders and short-term sleep deprivation.

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