Effects of cue information on response production and inhibition measured by event-related potentials.

Full Abstract

The aim of this study was to investigate how information carried by a cue stimulus modulate event-related potentials (ERPs) to a subsequent target stimulus which either calls for an overt response (Go stimulus) or no response (Nogo stimulus). One of the cues predicted the likely appearance of the Go stimulus (Go cue) whereas the other cue predicted the likely appearance of the Nogo stimulus (Nogo cue). Our results showed that unpredicted Nogo stimuli elicited enlarged N200 component. This finding supports the notion that Nogo N200 reflects response inhibition processes, i.e., the amplitude of the N200 is a function of the difficulty of response inhibition. In other words, increased N200 to Nogo stimuli following Go cues might be related to increased efforts in activating the response inhibition system thereby interrupting preparations to respond.

Author information

Author/s: Géczy, I (I); Czigler, I (I); Balázs, L (L);

Affiliation: Department of Comparative Physiology, Eötvös Loránd University, Budapest, Hungary.

Journal and publication information

Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't

Journal: Acta physiologica Hungarica (Acta Physiol Hung), published in HUNGARY. (Language: eng)

Reference: 1999-; vol 86 (issue 1) : pp 37-44

Dates: Created 2000/06/02; Completed 2000/06/02; Revised 2006/11/15;

PMID: 10755168, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

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