Dynamic changes in large-scale functional connectivity prior to stimulation determine performance in a multisensory task.

ABSTRACT: Complex behavior and task execution require fast changes of local activity and functional connectivity in cortical networks at multiple scales. The roles that changes of power and connectivity play during these processes are still not well understood. Here, we study how fluctuations of functional cortical coupling across different brain areas determine performance in an audiovisual, lateralized detection task in the ferret. We hypothesized that dynamic variations in the network's state determine the animals' performance. We evaluated these by quantifying changes of local power and of phase coupling across visual, auditory and parietal regions. While power for hit and miss trials showed significant differences only during stimulus and response onset, phase coupling already differed before s

SUBMITTER: Galindo-Leon EE 

PROVIDER: S-EPMC11860953 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature