Covariance-based analysis of spindle-band EEG during declarative and non-declarative odor cueing in sleep

IntroductionSleep supports memory consolidation through the reactivation of neural circuits engaged during learning. Targeted Memory Reactivation (TMR), in which memory-associated sensory cues are presented during sleep, can enhance declarative memory retention. However, the neural signatures supporting odor-cued reactivation remain incompletely characterized.Materials and methodsHere, we analyzed high-density electroencephalography (EEG) recordings from a TMR paradigm designed to dissociate neu