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Anterior cingulate activity and level of cognitive conflict: explicit comparisons

Mitchell, R. L. C. (2006) Anterior cingulate activity and level of cognitive conflict: explicit comparisons. Behavioral Neuroscience, 120 (6). pp. 1395-1401. ISSN 0735-7044

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To link to this article DOI: 10.1037/0735-7044.120.6.1395

Abstract/Summary

The role of anterior cingulate cortex (ACC) in attention is a matter of debate. One hypothesis suggests that its role is to monitor response-level conflict, but explicit evidence is somewhat lacking. In this study, the activation of ACC was compared in (a) color and number standard Stroop tasks in which response preparation and interference shared modality (response-level conflict) and (b) color and number matching Stroop tasks in which response preparation and interference did not share modality (non-response-level conflict). In the congruent conditions, there was no effect of task type. In the interference conditions, anterior cingulate activity in the matching tasks was less than that in the standard tasks. These results support the hypothesis that ACC specifically mediates generalized modality-independent selection processes invoked by response competition.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Psychology and Clinical Language Sciences
ID Code:13928
Uncontrolled Keywords:anterior cingulate, fMRI, cognitive conflict, response competition, selective attention, EVENT-RELATED FMRI, STROOP TASK, RESPONSE COMPETITION, SELECTIVE, ATTENTION, INTERFERENCE, CORTEX, REGIONS, WORDS, TRIAL

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