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  Retrospective and Prospective Influences on Performance During a Visuomotor Search Task

Thornton, I., & Horowitz, T. (2000). Retrospective and Prospective Influences on Performance During a Visuomotor Search Task. Poster presented at 41st Annual Meeting of The Psychonomic Society, New Orleans, LA, USA.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-E41E-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-B704-8
Genre: Poster

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Thornton, IM1, 2, Author              
Horowitz, TS, Author
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: We used a simple visuomotor task to explore retrospective and prospective aspects of search. Observers sequentially clicked through a series of target items (e.g., letters A–J), randomly distributed within a 12º 12° viewing area. In Experiment 1, all target items were initially visible and we varied whether they remained visible or vanished after selection. Reaction time decreases, as a function of target position, were identical in both conditions. In Experiment 2, we isolated the retrospective component. Here, only one target item was initially present while the remaining locations contained distractor items. As each target was selected, the next target appeared, replacing one of the distractor items. Again, reaction time decreased roughly linearly in both vanish and remain conditions, however, the efficiency of remain trials was substantially reduced compared with that of vanish trials. These findings suggest that both what you did and what you intend to do can influence search performance.

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 Dates: 2000-11
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: ThorntonH2000
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Title: 41st Annual Meeting of The Psychonomic Society
Place of Event: New Orleans, LA, USA
Start-/End Date: 2000-11-16 - 2000-11-19

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Title: Abstracts of the Psychonomic Society
Source Genre: Proceedings
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Pages: - Volume / Issue: 5 Sequence Number: 3 Start / End Page: 1 Identifier: -