1. On-line executive control: An electromyographic study.
- Author
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Allain, Sonia, Carbonnell, Laurence, Burle, Boris, Hasbroucq, Thierry, and Vidal, Franck
- Subjects
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REACTION time , *ELECTROMYOGRAPHY , *MOTOR ability testing , *ERROR analysis in mathematics , *CONTROL (Psychology) - Abstract
In a choice reaction time (RT) task, electromyographic (EMG) recordings allowed us to fractionate RT into two subcomponents, namely premotor time and motor time. This has been done for correct trials and errors. The analysis of the EMG burst and motor time (between EMG onset and overt response) showed that the EMG burst amplitude was reduced and the motor time was longer for errors than for correct responses. In the same way as posterror slowing on the RT was interpreted as revealing between-trials changes in executive control, the present data provide direct evidence for an on-line, within-trial, executive control. [ABSTRACT FROM AUTHOR]
- Published
- 2004
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