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  Effects of response selection on the task-repetition benefit in task switching

Koch, I., & Philipp, A. M. (2005). Effects of response selection on the task-repetition benefit in task switching. Memory & Cognition, 33(4), 624-634. doi:10.3758/BF03195329.

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 Creators:
Koch, Iring1, Author              
Philipp, Andrea Mona1, Author              
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1Department Psychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634564              

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 Abstract: A task switch typically leads to worse performance than a repetition does. This shift cost can be reduced with sufficient task preparation time, but a residual cost usually remains. We propose that a large part of this residual cost is caused by an activation bias produced by response selection processes in the preceding trial. In our experiments, we manipulated response selection requirements using a go/no-go methodology. The residual shift cost disappeared after no-go trials, suggesting that response selection is crucial to establish an activation bias for the current category-response rules and that this bias persists into the next trial. A comparison with a go-only group confirmed this analysis by revealing no differences in preparatory strategy due to the inclusion of no-go trials. In addition, no-go trials had no significant effects on subsequent trials in a single-task experiment, suggesting that no-go trials are not coded as a task different from go trials and that there is no inhibition of the prepared task in a no-go trial. We thus conclude that a persisting activation bias of response rules plays a major role in task switching.

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 Dates: 2005
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: eDoc: 277993
Other: P5131
DOI: 10.3758/BF03195329
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Title: Memory & Cognition
Source Genre: Journal
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Publ. Info: Psychonomic Society Inc.
Pages: - Volume / Issue: 33 (4) Sequence Number: - Start / End Page: 624 - 634 Identifier: ISSN: 0090-502X
CoNE: https://pure.mpg.de/cone/journals/resource/954925461133