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ERIC Number: EJ934639
Record Type: Journal
Publication Date: 2011-Aug
Pages: 14
Abstractor: As Provided
Reference Count: 45
ISBN: N/A
ISSN: ISSN-0096-1523
Task-Set Reconfiguration and Perceptual Processing: Behavioral and Electrophysiological Evidence
Mackenzie, Ian G.; Leuthold, Hartmut
Journal of Experimental Psychology: Human Perception and Performance, v37 n4 p1239-1252 Aug 2011
Oriet and Jolicoeur (2003) proposed that an endogenous task-set reconfiguration process acts as a hard bottleneck during which even early perceptual processing is impossible. We examined this assumption using a psychophysiological approach. Participants were required to switch between magnitude and parity judgment tasks within a predictable task sequence while event-related potentials (ERPs) were recorded. Stimulus contrast and response stimulus interval (RSI) were manipulated. Behavioral data demonstrated typical task switch costs that decreased as RSI increased. However, whereas ERP analysis of visual ERP component latencies sensitively revealed the contrast effect, a switch-specific postponement of perceptual processing during task-set reconfiguration at short RSIs was not observed. The present findings indicate that the process of task-set reconfiguration does not constitute a hard bottleneck that delays perceptual processing. (Contains 1 footnote, 3 tables, and 5 figures.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: United Kingdom (Scotland)