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Avoidant instructions induce ironic and overcompensatory movement errors differently between and within individuals

Russell, Christopher and Grealy, Madeleine A. (2010) Avoidant instructions induce ironic and overcompensatory movement errors differently between and within individuals. Quarterly Journal of Experimental Psychology, 63 (9). pp. 1671-1682. ISSN 1747-0218

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Abstract

Giving avoidant instructions can ironically result in the forbidden act being carried out, especially when the person is anxious or cognitive loaded. However, the consistency with which individuals make ironic errors across conditions remains unexamined. Forty participants were instructed to avoid moving a cursor above, below, left, and right when tracing an invisible line connecting two points while rehearsing seven-digit numbers on half of trials. Results showed that, without cognitive load, 26 participants made consistent overcompensatory movements, 10 made consistent ironic errors, and 4 showed no distinct error bias, with levels of somatic anxiety predicting this pattern. However, 21 (52.5%) participants changed their error tendency when cognitive loaded, indicating that movement effects of avoidant instruction were not experienced as general phenomena but rather differed between and within individuals. Overcompensatory errors made by participants grouped as overcompensatory performers under low load were significantly larger than the ironic errors made by participants grouped as ironic performers under low load, yet, paradoxically, ironic performers reported higher state and trait anxiety. Overall, results demonstrate a clear experimenter bias inherent in the use of avoidant instructions to direct participants' motor control.

Item type: Article
ID code: 26546
Keywords: ironic, overcompensatory, movement control, avoidant instruction, individual differences, Psychology, Neuropsychology and Physiological Psychology, Psychology(all), Experimental and Cognitive Psychology, Physiology, Physiology (medical)
Subjects: Philosophy. Psychology. Religion > Psychology
Department: Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Psychology
Related URLs:
    Depositing user: Allison Crawford
    Date Deposited: 04 Aug 2010 15:56
    Last modified: 05 Sep 2014 06:33
    URI: http://strathprints.strath.ac.uk/id/eprint/26546

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