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ERIC Number: EJ903637
Record Type: Journal
Publication Date: 2010-Dec
Pages: 7
Abstractor: As Provided
Reference Count: N/A
ISBN: N/A
ISSN: ISSN-0010-0277
The Influence of Reward Associations on Conflict Processing in the Stroop Task
Krebs, Ruth M.; Boehler, Carsten N.; Woldorff, Marty G.
Cognition, v117 n3 p341-347 Dec 2010
Performance in a behavioral task can be facilitated by associating stimulus properties with reward. In contrast, conflicting information is known to impede task performance. Here we investigated how reward associations influence the within-trial processing of conflicting information using a color-naming Stroop task in which a subset of ink colors (task-relevant dimension) was associated with monetary incentives. We found that color-naming performance was enhanced on trials with "potential-reward" versus those without. Moreover, in "potential-reward" trials, typical conflict-induced performance decrements were attenuated if the incongruent word (task-irrelevant dimension) was unrelated to reward. In contrast, incongruent words that were semantically related to reward-predicting ink colors interfered with performance in "potential-reward" trials and even more so in no-reward trials, despite the semantic meaning being entirely task-irrelevant. These observations imply that the prospect of reward enhances the processing of task-relevant stimulus information, whereas incongruent "reward-related" information in a task-irrelevant dimension can impede task performance. (Contains 1 table and 2 figures.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Stroop Color Word Test