Right-lateralized sleep spindles are associated with neutral over emotional bias in picture recognition: An overnight study.

ABSTRACT: Sleep is especially important for emotional memories, although the mechanisms for prioritizing emotional content are insufficiently known. As during waking, emotional processing during sleep may be hemispherically asymmetric; right-lateralized rapid-eye movement (REM) sleep theta (~4-7 Hz) is reportedly associated with emotional memory retention. No research exists on lateralized non-REM sleep oscillations. However, sleep spindles, especially when coupled with slow oscillations (SOs), facilitate off-line memory consolidation.Our primary goal was to examine how the lateralization (right-to-left contrast) of REM theta, sleep spindles, and SO-spindle coupling is associated with overnight recognition memory in a task consisting of neutral and emotionally aversive pictures. Thirty-two healthy a

SUBMITTER: Halonen R 

PROVIDER: S-EPMC10260275 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature