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Clinical Trial
. 2003 Feb;29(1):92-105.
doi: 10.1037//0096-1523.29.1.92.

The role of response selection for inhibition of task sets in task shifting

Affiliations
Clinical Trial

The role of response selection for inhibition of task sets in task shifting

Stefanie Schuch et al. J Exp Psychol Hum Percept Perform. 2003 Feb.

Abstract

Response selection in task shifting was explored using a go/no-go methodology. The no-go signal occurred unpredictably with stimulus onset so that all trials required task preparation but only go trials required response selection. Experiment 1 showed that shift costs were absent after no-go trials, indicating that response processes are crucial for shift costs. In Experiment 2, backward inhibition was absent after no-go trials. Experiments 3 and 4 demonstrated that response selection, rather than execution, causes backward inhibition. All 4 experiments showed effects of preparation time in go trials, suggesting that advance preparation must have also occurred in no-go trials. The authors concluded that inhibition of irrelevant task sets arises only at response selection and that residual shift costs reflect such persisting inhibition.

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