## Effects of stimulus features and instruction on response coding, selection, and inhibition : Evidence from repetition effects under task switching

2008
Journal article
##### Published in
The Quarterly Journal of Experimental Psychology ; 61 (2008), 10. - pp. 1573-1599
##### Abstract
The coding of stimuli and responses is crucial for human behaviour. Here, we focused primarily on the response codes (or response categories). As a method, we applied a combined dual-task and taskswitch paradigm with a fixed task-to-hand mapping. Usually, negative effects (i.e., costs) are observed for response category repetitions under task switching. However, in several previous studies it has been proposed that such repetition effects do not occur, if the stimulus categories (e.g., "odd" if digits have to be classified according to their parity feature) are unequivocally mapped to specific responses. Our aim was to test this hypothesis. In the present experiments, we were able to distinguish between three different types of possible response codes. The results show that the participants generally code their responses according to abstract response features (left/right, or index/middle finger). Moreover, the spatial codes were preferred over the finger-type codes even if the instructions stressed the latter. This preference, though, seemed to result from a stimulus-response feature overlap, so that the spatial response categories were primed by the respective stimulus features. If there was no such overlap, the instructions determined which type of response code was involved in response selection and inhibition.
150 Psychology
##### Cite This
ISO 690DRUEY, Michel D., Ronald HÜBNER, 2008. Effects of stimulus features and instruction on response coding, selection, and inhibition : Evidence from repetition effects under task switching. In: The Quarterly Journal of Experimental Psychology. 61(10), pp. 1573-1599. Available under: doi: 10.1080/17470210701643397
BibTex
@article{Druey2008Effec-10673,
year={2008},
doi={10.1080/17470210701643397},
title={Effects of stimulus features and instruction on response coding, selection, and inhibition : Evidence from repetition effects under task switching},
number={10},
volume={61},
journal={The Quarterly Journal of Experimental Psychology},
pages={1573--1599},
author={Druey, Michel D. and Hübner, Ronald}
}

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