Four-dimensional functional cortical maps of visual and auditory language: Intracranial recording.

ABSTRACT: OBJECTIVE:The strength of presurgical language mapping using electrocorticography (ECoG) is its outstanding signal fidelity and temporal resolution, but the weakness includes limited spatial sampling at an individual patient level. By averaging naming-related high-gamma activity at nonepileptic regions across a large number of patients, we provided the functional cortical atlases animating the neural dynamics supporting visual-object and auditory-description naming at the whole brain level. METHODS:We studied 79 patients who underwent extraoperative ECoG recording as epilepsy presurgical evaluation, and generated time-frequency plots and animation videos delineating the dynamics of naming-related high-gamma activity at 70-110 Hz. RESULTS:Naming task performance elicited high-gamma augmenta

SUBMITTER: Nakai Y 

PROVIDER: S-EPMC6365188 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature