Discovering Event Structure in Continuous Narrative Perception and Memory.

ABSTRACT: During realistic, continuous perception, humans automatically segment experiences into discrete events. Using a novel model of cortical event dynamics, we investigate how cortical structures generate event representations during narrative perception and how these events are stored to and retrieved from memory. Our data-driven approach allows us to detect event boundaries as shifts between stable patterns of brain activity without relying on stimulus annotations and reveals a nested hierarchy from short events in sensory regions to long events in high-order areas (including angular gyrus and posterior medial cortex), which represent abstract, multimodal situation models. High-order event boundaries are coupled to increases in hippocampal activity, which predict pattern reinstatement during

SUBMITTER: Baldassano C 

PROVIDER: S-EPMC5558154 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature