Impaired emotional processing in insomnia: REM sleep beta power and frontal cortex activation.

ABSTRACT:

Background

Insomnia disorder is frequently associated with emotional dysregulation, but the underlying neural basis of emotion processing and its relationship to hyperarousal biomarkers, such as beta power during rapid eye movement (REM) sleep, remain unclear. In this study, we investigated the neural basis of emotional processing in patients with insomnia disorder (ID) and explored its association with electroencephalography (EEG) measures, focusing on REM sleep beta power.

Methods

Thirty-five ID and 34 age- and gender-matched healthy controls (HC) completed questionnaires, underwent whole-night portable single-channel EEG at home, and performed an emotion-matching task under functional Magnetic Resonance Imaging (fMRI). Between-group comparisons were conducted on behaviora

SUBMITTER: Wang S 

PROVIDER: S-EPMC12584528 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature