Keywords

Error negativity (Ne), Anterior cingulate, Reliability, Test-retest, Temporal stability

Abstract

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.

Document Type

Peer-Reviewed Article

Publication Date

2010

Publisher

Society for Psychophysiological Research

Language

English

College

Family, Home, and Social Sciences

Department

Psychology

Included in

Psychology Commons

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