Error negativity (Ne), Anterior cingulate, Reliability, Test-retest, Temporal stability
The error-related negativity (ERN) and post-error positivity (Pe) components of the event-related potential (ERP) arerelatively stable over time. The current study further assessed the temporal reliability of ERN and Pe amplitudes forrandom samples of 2 to 14 trials per participant and the grand mean over a 2-week retest interval. In a replication ofprevious results, intraclass and zero-order correlations revealed moderate to good temporal stability for participants’(N520) grand mean ERN and Pe component amplitudes. Adding trials increased test–retest reliabilities; however, thetemporal stability of ERN and Pe amplitudes with 14 or fewer trials were modest at best and considerably lower thanthat for the grand means. Overall, data support the temporal stability of grand-mean ERN and Pe amplitudes andsuggest that more than 14 trials are needed to include in ERN and Pe averages for adequate test–retest reliability.
BYU ScholarsArchive Citation
Baldwin, Scott A.; Larson, Michael J.; Good, Daniel A.; and Fair, Joseph E., "Temporal stability of the error-related negativity (ERN)and post-error positivity (Pe): The role of number of trials" (2010). Faculty Publications. 6054.
Society for Psychophysiological Research
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