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Sequential adjustments before and after partial errors
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DOI：10.3758/PBR.16.2.356.png)
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摘要
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In choice reaction time tasks, subjects speed up before making an error, but slow down afterward to prevent the occurrence of a new error. In some trials, the correct response is preceded by an incorrect electromyographic (EMG) activation too small to reach the response threshold. In this article, we show that these incorrect EMG activations give rise to the sa-me sequential effects as overt errors: Before a trial containing an incorrect EMG activation, subjects speed up. whereas after that trial, they slow down. These activations reflect errors that have been detected, inhibited, and corrected in time. As such, they index the involvement of online executive control.
Keyword:
REACTION-TIME
COGNITIVE CONTROL
EXECUTIVE CONTROL
CINGULATE CORTEX
CONTINUOUS-FLOW
CONFLICT
PERFORMANCE
HUMANS
ONSET
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