Affective information modulates slow-wave- and arousal-like responses during NREM sleep.

ABSTRACT: Sleep is characterized by relative disconnection from the external environment and prompt reversibility in response to salient stimuli. During non-rapid eye movement (NREM) sleep, reactive electroencephalographic (EEG) slow waves (K-complexes, KC) are thought to both suppress the processing of external stimuli and open 'sentinel' windows during which further relevant inputs may be tracked. However, the extent to which a stimulus's relevance modulates the KC-related response remains unclear. Here, we investigated the impact of emotional information in human vocal bursts on KC and post-KC activity. Twenty-five young adults were presented with vocal bursts conveying negative, neutral, and positive emotions. We found that affective content influenced the rate, amplitude, and cortical distribut

SUBMITTER: Grollero D 

PROVIDER: S-EPMC12271331 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature