Neural mechanisms for integrating consecutive and interleaved natural events.

ABSTRACT: To understand temporally extended events, the human brain needs to accumulate information continuously across time. Interruptions that require switching of attention to other event sequences disrupt this process. To reveal neural mechanisms supporting integration of event information, we measured brain activity with functional magnetic resonance imaging (fMRI) from 18 participants while they viewed 6.5-minute excerpts from three movies (i) consecutively and (ii) as interleaved segments of approximately 50-s in duration. We measured inter-subject reliability of brain activity by calculating inter-subject correlations (ISC) of fMRI signals and analyzed activation timecourses with a general linear model (GLM). Interleaving decreased the ISC in posterior temporal lobes, medial prefrontal corte

SUBMITTER: Lahnakoski JM 

PROVIDER: S-EPMC6866821 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature