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Performance and ERP components in the equiprobable go/no-go task: Inhibition in children

Journal Article


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Abstract


  • The equiprobable go/no-go task lacks the dominant go imperative found in the usual go/no-go task, and hence we previously regarded it as involving little inhibition. However, children have relative difficulty with this task, and demonstrate large frontal no-go N2s. We investigated whether this child N2 plays an inhibitory role, using performance measures to illuminate the link between N2 and inhibition. Forty children aged 8 to 13 were presented with four stimulus blocks each containing 75 go and 75 no-go tone stimuli in random order. A temporal PCA with unrestricted varimax rotation quantified the mean go and no-go ERP component amplitudes. Most identified components were differentially enhanced to go or no-go as in adults, supporting a previously proposed differential processing schema. Between subjects, larger frontocentral no-go N2bs were associated with fewer commission errors. Hence, the no-go N2b in this paradigm can be interpreted as an individual marker of inhibition in children.

Publication Date


  • 2015

Citation


  • Barry, R. J. & De Blasio, F. M. (2015). Performance and ERP components in the equiprobable go/no-go task: Inhibition in children. Psychophysiology, 52 (9), 1228-1237.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3033&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/2034

Number Of Pages


  • 9

Start Page


  • 1228

End Page


  • 1237

Volume


  • 52

Issue


  • 9

Abstract


  • The equiprobable go/no-go task lacks the dominant go imperative found in the usual go/no-go task, and hence we previously regarded it as involving little inhibition. However, children have relative difficulty with this task, and demonstrate large frontal no-go N2s. We investigated whether this child N2 plays an inhibitory role, using performance measures to illuminate the link between N2 and inhibition. Forty children aged 8 to 13 were presented with four stimulus blocks each containing 75 go and 75 no-go tone stimuli in random order. A temporal PCA with unrestricted varimax rotation quantified the mean go and no-go ERP component amplitudes. Most identified components were differentially enhanced to go or no-go as in adults, supporting a previously proposed differential processing schema. Between subjects, larger frontocentral no-go N2bs were associated with fewer commission errors. Hence, the no-go N2b in this paradigm can be interpreted as an individual marker of inhibition in children.

Publication Date


  • 2015

Citation


  • Barry, R. J. & De Blasio, F. M. (2015). Performance and ERP components in the equiprobable go/no-go task: Inhibition in children. Psychophysiology, 52 (9), 1228-1237.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3033&context=sspapers

Ro Metadata Url


  • http://ro.uow.edu.au/sspapers/2034

Number Of Pages


  • 9

Start Page


  • 1228

End Page


  • 1237

Volume


  • 52

Issue


  • 9