Parietal alpha asymmetry as a diagnostic marker for depression and a predictive biomarker for anhedonia improvement after melatonergic antidepressant treatment.

BACKGROUND: Major depressive disorder (MDD) is often marked by anhedonia, a symptom poorly addressed by first-line antidepressants. While frontal alpha asymmetry (FAA) has been widely studied, findings are inconsistent. Recent evidence suggests parie…

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