ERP components associated with successful and unsuccessful stopping in a stop-signal task. Export

@article{citeulike:1142233, abstract = {The primary aim of this study was to examine how response inhibition is reflected in components of the event-related potential (ERP), using the stop-signal paradigm as a tool to manipulate response inhibition processes. Stop signals elicited a sequence of N2/P3 components that partly overlapped with ERP components elicited by the reaction stimulus. N2/P3 components were more pronounced on stop-signal trials than on no-stop-signal trials. At Cz, the stop-signal P3 peaked earlier on successful than on unsuccessful stop trials. This finding extends the horse race model by demonstrating that the internal response to the stop signal (as reflected in stop-signal P3) is not constant, but terminates at different moments in time on successful and unsuccessful stop trials. In addition, topographical distributions and dipole analysis of high density EEG recordings indicated that different cortical generators were involved in P3s elicited on successful and unsuccessful stop-signal trials. The latter results suggest that P3 on successful stop-signal trials not only reflects stop-signal processing per se, but also efficiency of inhibitory control.}, address = {Psychology Department, University of Amsterdam, Amsterdam, The Netherlands. akok@fmg.uva.nl}, author = {Kok, A. and Ramautar, J. R. and De Ruiter, M. B. and Band, G. P. and Ridderinkhof, K. R.}, citeulike-article-id = {1142233}, citeulike-linkout-0 = {http://dx.doi.org/10.1046/j.1469-8986.2003.00127.x}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/14692996}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=14692996}, comment = {Kok et al. conclude their 2004 Psychophysiology paper with half a paragraph suggesting that enhanced N2/P3 ERP components in unsuccessful relative to successful stop trials "reflect aspects of monitoring of responses that subjects were not able to suppress." }, doi = {10.1046/j.1469-8986.2003.00127.x}, issn = {0048-5772}, journal = {Psychophysiology}, keywords = {2crt, 50\_percent\_stop\_trials, equal\_frequency, monitoring, p3, response\_inhibition, ssrt}, month = {January}, number = {1}, pages = {9--20}, posted-at = {2007-03-05 20:28:56}, priority = {5}, title = {ERP components associated with successful and unsuccessful stopping in a stop-signal task.}, url = {http://dx.doi.org/10.1046/j.1469-8986.2003.00127.x}, volume = {41}, year = {2004} }

TY - JOUR ID - citeulike:1142233 L3 - citeulike-article-id:1142233 N2 - The primary aim of this study was to examine how response inhibition is reflected in components of the event-related potential (ERP), using the stop-signal paradigm as a tool to manipulate response inhibition processes. Stop signals elicited a sequence of N2/P3 components that partly overlapped with ERP components elicited by the reaction stimulus. N2/P3 components were more pronounced on stop-signal trials than on no-stop-signal trials. At Cz, the stop-signal P3 peaked earlier on successful than on unsuccessful stop trials. This finding extends the horse race model by demonstrating that the internal response to the stop signal (as reflected in stop-signal P3) is not constant, but terminates at different moments in time on successful and unsuccessful stop trials. In addition, topographical distributions and dipole analysis of high density EEG recordings indicated that different cortical generators were involved in P3s elicited on successful and unsuccessful stop-signal trials. The latter results suggest that P3 on successful stop-signal trials not only reflects stop-signal processing per se, but also efficiency of inhibitory control. IS - 1 JF - Psychophysiology SN - 0048-5772 AD - Psychology Department, University of Amsterdam, Amsterdam, The Netherlands. akok@fmg.uva.nl EP - 20 TI - ERP components associated with successful and unsuccessful stopping in a stop-signal task. VL - 41 SP - 9 KW - 2crt KW - 50_percent_stop_trials KW - equal_frequency KW - monitoring KW - p3 KW - response_inhibition KW - ssrt N1 - Kok et al. conclude their 2004 Psychophysiology paper with half a paragraph suggesting that enhanced N2/P3 ERP components in unsuccessful relative to successful stop trials "reflect aspects of monitoring of responses that subjects were not able to suppress." AU - Kok, A AU - Ramautar, JR AU - De Ruiter, MB AU - Band, GP AU - Ridderinkhof, KR PY - 2004/01// UR - http://dx.doi.org/10.1046/j.1469-8986.2003.00127.x ER -