Pastoetter, Bernhard and Berchtold, Franziska and Baeuml, Karl-Heinz T. (2012) Oscillatory correlates of controlled speed-accuracy tradeoff in a response-conflict task. HUMAN BRAIN MAPPING, 33 (8). pp. 1834-1849. ISSN 1065-9471, 1097-0193
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In making decisions, people have to balance between the competing demands of speed and accuracy, a balance generally referred to as the speed-accuracy tradeoff (SAT). In this study, we investigated the role of controlled SAT in a two-choice task in which manual responses were either validly or invalidly cued. Examining electrophysiological measurements of oscillatory brain activity, theta power in the anterior cingulate cortex (ACC), alpha power in the occipital cortex, and beta power in the motor cortex were found to be related to SAT. Because oscillatory effects of SAT were found to emanate from the SAT baseline interval preceding the two-choice task, the results indicate that SAT is modulated by a change of visuo-motor baseline activities rather than a change of response threshold. Moreover, in the two-choice task, conflict-induced theta power in the ACC was found to be more pronounced in speed than in accuracy trials, whereas priming-related beta power dynamics in the motor cortex were unaffected by SAT. These results indicate that conflict processing, but not response priming, depends on SAT. Hum Brain Mapp, 2012. (c) 2011 Wiley Periodicals, Inc
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANTERIOR CINGULATE CORTEX; WORKING-MEMORY TASK; DECISION-MAKING; ELECTROMAGNETIC TOMOGRAPHY; EXECUTIVE FUNCTIONS; PREFRONTAL CORTEX; OCCIPITAL CORTEX; BRAIN ACTIVITY; ALPHA-ACTIVITY; TIME PRESSURE; speed-accuracy tradeoff; anterior cingulate cortex; motor cortex; brain oscillations; conflict; response priming |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie IV (Entwicklungs- und Kognitionspsychologie) - Prof. Dr. Karl-Heinz Bäuml |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 May 2020 06:10 |
| Last Modified: | 08 May 2020 06:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18412 |
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