Psychophysiological mechanisms underlying response selection in multidimensional space.

ABSTRACT: In the outside world, response selection often requires the processing of information from different spatial dimensions. Yet, most neuroscientific approaches to the topic only employ variations in one dimension, namely the horizontal left-right axis. Hence, virtually nothing is known about the neuronal mechanisms underlying response selection in more than one dimension. We investigated this aspect with the help of a two-dimensional flanker task using EEG and source localization techniques. The data shows that response selection processes are differentially modulated across different dimensions. However, this modulation is restricted to conditions imposing increased demands on response selection. In such situations, a distributed fronto-parietal network mediates intensified conflict monitor

SUBMITTER: Muckschel M 

PROVIDER: S-EPMC4291563 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature