Error patterns in a chord keyboard response task |
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Authors: | D. J. Guest M. E. Sime T. R. G. Green |
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Affiliation: | a MRC Social and Applied Psychology Unit, Department of Psychology, University of Sheffield, |
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Abstract: | Errors in a serial choice-reaction time experiment employing two-finger chord responses to alphabetic stimuli are shown to be distributed in a significantly non-random fashion. Two factors are postulated which are relevant to prediction of the error response. These are the presence or absence of a common finger, and the difference in finger separation, between the actual and the required response. It is suggested that the chord response is coded in terms of a pattern (the distance between the two response components). Responses which mirror the correct response about the centre of the hand are also shown to be significantly more frequent. |
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