期刊
NEUROSCIENCE LETTERS
卷 362, 期 1, 页码 44-47出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/j.neulet.2004.02.028
关键词
magnetoencephalography; error processing; sensorimotor cortex; error-related negativity; negativity
We studied error-related processing using magnetoencephalography (MEG). Previous event-related potential studies have documented error negativity or error-related negativity after incorrect responses, with a suggested source in the anterior cingulate cortex or supplementary motor area. We compared activation elicited by correct and incorrect trials using auditory and visual choice-reaction time tasks. Source areas showing different activation patterns in correct and error conditions were mainly located in sensorimotor areas, both ipsi- and contralateral to the response, suggesting that activation of sensorimotor circuits accompanies error processing. Additional activation at various other locations suggests a distributed network of brain regions active during error-related processing. Activation specific to incorrect trials tended to occur later in MEG than EEG data, possibly indicating that EEG and MEG detect different neural networks involved in error-related processes. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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