Repeated Viewing of a Narrative Movie Changes Event Timescales in The Brain.

ABSTRACT: Many experiences occur repeatedly throughout our lives: we might watch the same movie more than once and listen to the same song on repeat. How does the brain modify its representations of events when experiences are repeated? We hypothesized that, with repeated viewing of a narrative movie, brain regions would adapt their event representations by becoming either finer (more detailed) or coarser (more generalized). To test this hypothesis, we analyzed data from 30 human participants who underwent functional magnetic resonance imaging (fMRI) while watching three 90-second clips from "The Grand Budapest Hotel" six times each. We used hidden Markov models and pattern similarity analysis applied to searchlights across the brain to quantify the strength of event structure at different timescale

SUBMITTER: Al-Zahli N 

PROVIDER: S-EPMC12424988 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature