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Anterior cingulate error-related activity is modulated by predicted reward.

Abstract : Learning abilities depend on detection and exploitation of errors. In primates, this function involves the anterior cingulate cortex. However, whether anterior cingulate error-related activity indicates occurrence of inappropriate responses or results from other computations is debated. Here we have tested whether reward-related parameters modulate error-related activity of anterior cingulate neurons. Recordings in monkeys performing stimulus-reward associations and preliminary data obtained with a problem-solving task revealed major properties of error-related unit activity: (i) their amplitude varies with the amount of predicted reward or the proximity to reward delivery; (ii) they appear both after execution and performance errors; (iii) they do not indicate which error occurred or which correction to make; and (iv), importantly, the activity of these neurons also increases following an external signal indicating the necessity to shift response. Hence, we conclude that anterior cingulate 'error' activity might represent a negative deviation from a predicted goal, and does not only reflect error detection but signals events interrupting potentially rewarded actions.
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Contributor : Emmanuel Procyk Connect in order to contact the contributor
Submitted on : Tuesday, February 20, 2007 - 4:29:24 PM
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Céline Amiez, Jean-Paul Joseph, Emmanuel Procyk. Anterior cingulate error-related activity is modulated by predicted reward.. European Journal of Neuroscience, Wiley, 2005, 21, pp.3447-52. ⟨10.1111/j.1460-9568.2005.04170.x⟩. ⟨inserm-00132130⟩



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