Structured Neural Variability from Repeated Naturalistic Video Watching Experiences.

ABSTRACT: The brain continuously integrates perception and interpretation processes to navigate dynamic environments. It is often assumed that these processes are invariant to repeated experiences. Here we investigated how neural responses to naturalistic stimuli evolve across multiple viewings using functional magnetic resonance imaging. Twenty participants watched 24 short videos across five separate scanning sessions. Between-subject correlations (BSC) decreased progressively across all brain regions with repeated viewing, indicating increasing individual variability. Within-subject correlations (WSC) consistently exceeded BSC, demonstrating that individuals are more similar to themselves than to others. However, the structure of within-subject variability differed fundamentally between sensory a

SUBMITTER: Yang M 

PROVIDER: S-EPMC12642681 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature