@article{ref1,
title="Response-repetition effects in task switching-Dissociating effects of anatomical and spatial response discriminability",
journal="Acta psychologica",
year="2011",
author="Koch, Iring and Schuch, Stefanie and Vu, Kim-Phuong L. and Proctor, Robert W.",
volume="136",
number="3",
pages="399-404",
abstract="In task switching, response repetitions typically lead to performance benefits for task repetitions but costs for task switches. We examined whether this cost-benefit pattern is affected by response discriminability (RD), varying (a) the anatomical response separation (within-hand vs. between-hand responses) and (b) the spatial separation (close vs. far response keys). We assumed that anatomical RD increases response competition generally, whereas spatial RD increases the salience of left-right coding and thus facilitates response selection. In two experiments, we found that spatial RD increased the response-repetition costs in task switches but similarly decreased the response-repetition benefit in task repetitions. The effect of spatial RD was response-specific but did not interact with task switching. This data pattern is consistent with a recent account that proposed that facilitated response selection increases response &quot;self-inhibition&quot; after response execution. In contrast, the influence of anatomical RD primarily consisted of an overall increase of reaction-time level in all conditions, whereas error rates decreased, suggesting a general shift in response criterion. Taken together, the data suggest that a self-inhibition mechanism on the level of motor response codes contributes to response-repetition effects in task switching, which is possibly independent of task-specific mechanisms of strengthening of associations.<p /> <p>Language: en</p>",
language="en",
issn="0001-6918",
doi="10.1016/j.actpsy.2011.01.006",
url="http://dx.doi.org/10.1016/j.actpsy.2011.01.006"
}