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  Practice-related reduction of dual-task costs under conditions of a manual-pedal response combination

Liepelt, R., Fischer, R., Frensch, P. A., & Schubert, T. (2011). Practice-related reduction of dual-task costs under conditions of a manual-pedal response combination. Journal of Cognitive Psychology, 23(1), 29-44. doi:10.1080/20445911.2011.448025.

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liepelt_fischer_frensch_schubert_2011.pdf (Publisher version), 327KB
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 Creators:
Liepelt, Roman1, 2, 3, Author              
Fischer, Rico2, 4, Author
Frensch, Peter A.2, Author
Schubert, Torsten2, 5, Author
Affiliations:
1Department of Psychology, Münster University, Germany, ou_persistent22              
2Humboldt University Berlin, Germany, ou_persistent22              
3Department Psychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634564              
4TU Dresden, Germany, ou_persistent22              
5Ludwig Maximilians University Munich, Germany, ou_persistent22              

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Free keywords: Dual task; Manual-pedal; Practice
 Abstract: Severe dual-task costs emerge when two tasks are performed at the same time. Schumacher, Seymour, Glass, Kieras, and Meyer (2001) showed a complete reduction of dual-task costs after extensive dual-task practice with a visual-manual (VM) task and an auditory-verbal (AV) task. First, we replicated these findings and found task conditions sufficient to achieve a high level of dual-task cost reduction (Experiment 1). Using these conditions, we tested whether the Schumacher et al. findings generalise to a different dual-task situation, in which participants practised a VM task and an auditory-pedal (AP) task (VM-AP) conjointly (Experiment 2). In the VM-AP task situation we found reduced dual-task costs after practice. Dual-task costs, however, remained on a high level after eight sessions of practice and also when extending practice to 12 sessions. No single participant showed evidence for time sharing in the VM-AP dual task. These results suggest that the finding of complete dual-task cost reduction does not generalise to the VM-AP task combination used in the present study. We discuss different factors potentially relevant for the observation of persisting dual-task costs over practice in the VM-AP task.

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Language(s): eng - English
 Dates: 2011-02-082011
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1080/20445911.2011.448025
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Title: Journal of Cognitive Psychology
  Abbreviation : J Cogn Psychol
Source Genre: Journal
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Publ. Info: Hove : Psychology Press
Pages: - Volume / Issue: 23 (1) Sequence Number: - Start / End Page: 29 - 44 Identifier: ISSN: 2044-5911
CoNE: https://pure.mpg.de/cone/journals/resource/2044-5911