Within-Subject Correlation Analysis to Detect Functional Areas Associated With Response Inhibition.

ABSTRACT: Functional areas in fMRI studies are often detected by brain-behavior correlation, calculating across-subject correlation between the behavioral index and the brain activity related to a function of interest. Within-subject correlation analysis is also employed in a single subject level, which utilizes cognitive fluctuations in a shorter time period by correlating the behavioral index with the brain activity across trials. In the present study, the within-subject analysis was applied to the stop-signal task, a standard task to probe response inhibition, where efficiency of response inhibition can be evaluated by the stop-signal reaction time (SSRT). Since the SSRT is estimated, by definition, not in a trial basis but from pooled trials, the correlation across runs was calculated between th

SUBMITTER: Yamasaki T 

PROVIDER: S-EPMC5972214 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature