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| Research article summary (published 8 Oct 2002): |
Monitoring and control of action by the frontal lobes.
Full Abstract
Success requires deciding among alternatives, controlling the initiation of movements, and judging the consequences of actions. When alternatives are difficult to distinguish, habitual responses must be overcome, or consequences are uncertain, deliberation is necessary and a supervisory system exerts control over the processes that produce sensory-guided movements. We have investigated these processes by recording neural activity in the frontal lobe of macaque monkeys performing a countermanding task. Distinct neurons in the frontal eye field respond to visual stimuli or control the production of the movements. In the supplementary eye field and anterior cingulate cortex, neurons appear not to control directly movement initiation but instead signal the production of errors, the anticipation and delivery of reinforcement, and the presence of processing conflict. These signals form the core of current models of supervisory control of sensorimotor processes.
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Author information
Author/s: Schall, Jeffrey D (JD); Stuphorn, Veit (V); Brown, Joshua W (JW);
Affiliation: Center for Integrative and Cognitive Neuroscience, Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA. jeffrey.d.schall(-atsign-)vanderbilt.edu
Grants: P30-EY08126 (Agency:United States NEI) ; R01-MH55806 (Agency:United States NIMH)
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Review
Journal: Neuron (Neuron), published in United States. (Language: eng)
Reference: 2002-Oct; vol 36 (issue 2) : pp 309-22
Dates: Created 2002/10/17; Completed 2002/11/04; Revised 2007/11/14;
PMID: 12383784, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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