Intra- and inter-hemispheric network dynamics supporting object recognition and speech production.

ABSTRACT: We built normative brain atlases that animate millisecond-scale intra- and inter-hemispheric white matter-level connectivity dynamics supporting object recognition and speech production. We quantified electrocorticographic modulations during three naming tasks using event-related high-gamma activity from 1,114 nonepileptogenic intracranial electrodes (i.e., non-lesional areas unaffected by epileptiform discharges). Using this electrocorticography data, we visualized functional connectivity modulations defined as significant naming-related high-gamma modulations occurring simultaneously at two sites connected by direct white matter streamlines on diffusion-weighted imaging tractography. Immediately after stimulus onset, intra- and inter-hemispheric functional connectivity enhancements were

SUBMITTER: Kitazawa Y 

PROVIDER: S-EPMC10112006 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature