Targeted memory reactivation during REM sleep may selectively enhance the late positive potential amplitude in previously encountered negative images: preliminary findings.

ABSTRACT: The function of rapid eye movement (REM) sleep in consolidating emotional memories and reducing emotional charge has been studied, but evidence remains conflicting. Our study employed the targeted memory reactivation (TMR) technique, which posits that specific sleep memories can be reactivated through sensory stimuli during sleep. Additionally, the late positive potential (LPP), a component of event-related brain potentials, was measured while participants (N = 16, 22.5 ± 1.2 years) viewed negative, neutral, or positive images (old images) paired with an odor stimulus. During subsequent REM sleep, the same odor was presented in the TMR condition, while an odorless stimulus was presented in the control condition. Upon awakening, participants performed the same task as before sleep, w

SUBMITTER: Sato K 

PROVIDER: S-EPMC12199615 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature