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Cognitive performance and electrophysiological indices of cognitive control: A validation study of conflict adaptation
Author(s) -
Clayson Peter E.,
Larson Michael J.
Publication year - 2012
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2011.01345.x
Subject(s) - psychology , cognition , verbal fluency test , executive functions , neuropsychology , cognitive psychology , adaptation (eye) , event related potential , fluency , developmental psychology , effects of sleep deprivation on cognitive performance , neuroscience , mathematics education
Psychiatric and neurologic disorders are associated with deficits in the postconflict recruitment of cognitive control. The primary aim of this study was to validate the relationship between cognitive functioning and indices of conflict adaptation. Event‐related potentials were obtained from 89 healthy individuals who completed an E riksen flanker task. Neuropsychological domains tested included memory, verbal fluency, and attention/executive functioning. Behavioral measures and N 2 amplitudes showed significant conflict adaptation (i.e., previous‐trial congruencies influenced current‐trial measures). Higher scores on the attention/executive functioning and verbal fluency domains were associated with larger incongruent‐trial N 2 conflict adaptation; measures of cognitive functioning were not related to behavioral indices. This study provides initial validation of N 2 conflict adaptation effects as cognitive function‐related aspects of cognitive control.