Effects of response-set size on error-related brain activity
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To study the effect of response-set size on action monitoring processes, the error-related negativity (Ne/ERN), the correct-related negativity (Nc/CRN), and behavioral indicators of action monitoring were compared across three groups of participants performing a two-choice, a four-choice, or an eight-choice version of the flanker task. After controlling for differential contribution of stimulus-related activity to response-locked averages resulting from large differences in response times across conditions, response-set size had strong effects on Ne/ERN and Nc/CRN. With increasing response-set size, the Ne/ERN amplitude decreased, but the Nc/CRN amplitude increased. Moreover, post-error behavioral adjustments were impaired with an increasing response-set size. These results suggest that action monitoring severely suffers when response-set size is increased. Implications of these findings for present theories of Ne/ERN and Nc/CRN are discussed.
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MAIER, Martin E., Marco STEINHAUSER, Ronald HÃœBNER, 2010. Effects of response-set size on error-related brain activity. In: Experimental Brain Research. 2010, 202(3), pp. 571-581. Available under: doi: 10.1007/s00221-010-2160-3BibTex
@article{Maier2010Effec-10562, year={2010}, doi={10.1007/s00221-010-2160-3}, title={Effects of response-set size on error-related brain activity}, number={3}, volume={202}, journal={Experimental Brain Research}, pages={571--581}, author={Maier, Martin E. and Steinhauser, Marco and Hübner, Ronald} }
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