Personalized targeted memory reactivation enhances consolidation of challenging memories via slow wave and spindle dynamics.

ABSTRACT: Sleep is crucial for memory consolidation, underpinning effective learning. Targeted memory reactivation (TMR) can strengthen neural representations by re-engaging learning circuits during sleep. However, TMR protocols overlook individual differences in learning capacity and memory trace strength, limiting efficacy for difficult-to-recall memories. Here, we present a personalized TMR protocol that adjusts stimulation frequency based on individual retrieval performance and task difficulty during a word-pair memory task. In an experiment comparing personalized TMR, TMR, and control groups, the personalized protocol significantly reduced memory decay and improved error correction under challenging recall. Electroencephalogram (EEG) analyses revealed enhanced synchronization of slow waves and

SUBMITTER: Shin GH 

PROVIDER: S-EPMC12280145 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature