Stimulus-hand correspondence and direct response activation: An electromyographic analysis.
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| Title: | Stimulus-hand correspondence and direct response activation: An electromyographic analysis. |
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| Authors: | Hasbroucq, Thierry (AUTHOR), Burle, Boris (AUTHOR), Vidal, Franck (AUTHOR), PossamaÏ, Camille‐Aime (AUTHOR) |
| Source: | Psychophysiology. Nov2009, Vol. 46 Issue 6, p1160-1169. 10p. 1 Black and White Photograph, 2 Charts, 4 Graphs. |
| Subjects: | Electromyography, Response consistency, Hand, Color, Left & right (Psychology) |
| Abstract: | In a common version of the Simon task, the subjects respond by a left- or a right-hand key press to the color of a stimulus (S) presented to the left or right of a fixation point. Albeit S location is irrelevant, the incorrect response is more often activated when the required response is contralateral to the S (incongruent) than when it is ipsilateral to the S (congruent). The aim of the present study was to decipher the respective contributions of S-response key location correspondence and S-hand correspondence to such incorrect activations (IAs). The subjects were required to perform a Simon task with the arms not crossing and crossing the median plane. Present for both arm placements, the difference in the frequency of IAs between incongruent and congruent responses was smaller when the arms were crossed. IAs are (i) essentially due to S-key location correspondence and (ii) less influenced by S-hand correspondence. Latency analyses further suggest that intra-hemispheric processing mediates the influence of S-hand correspondence. [ABSTRACT FROM AUTHOR] |
| Copyright of Psychophysiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | In a common version of the Simon task, the subjects respond by a left- or a right-hand key press to the color of a stimulus (S) presented to the left or right of a fixation point. Albeit S location is irrelevant, the incorrect response is more often activated when the required response is contralateral to the S (incongruent) than when it is ipsilateral to the S (congruent). The aim of the present study was to decipher the respective contributions of S-response key location correspondence and S-hand correspondence to such incorrect activations (IAs). The subjects were required to perform a Simon task with the arms not crossing and crossing the median plane. Present for both arm placements, the difference in the frequency of IAs between incongruent and congruent responses was smaller when the arms were crossed. IAs are (i) essentially due to S-key location correspondence and (ii) less influenced by S-hand correspondence. Latency analyses further suggest that intra-hemispheric processing mediates the influence of S-hand correspondence. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00485772 |
| DOI: | 10.1111/j.1469-8986.2009.00865.x |
