Performance monitoring by the anterior cingulate cortex during saccade countermanding

Shigehiko Ito, Veit Stuphorn, Joshua W. Brown, Jeffrey D. Schall

Research output: Contribution to journalArticlepeer-review

422 Scopus citations


Consensus is emerging that the medial frontal lobe of the brain is involved in monitoring performance, but precisely what is monitored remains unclear. A saccade-countermanding task affords an experimental dissociation of neural signals of error, reinforcement, and conflict. Single-unit activity was monitored in the anterior cingulate cortex of monkeys performing this task. Neurons that signaled errors were found, half of which responded to the omission of earned reinforcement. A further diversity of neurons signaled earned or unexpected reinforcement. No neurons signaled the form of conflict engendered by interruption of saccade preparation produced in this task. These results are consistent with the hypothesis that the anterior cingulate cortex monitors the consequences of actions.

Original languageEnglish (US)
Pages (from-to)120-122
Number of pages3
Issue number5642
StatePublished - Oct 3 2003
Externally publishedYes

ASJC Scopus subject areas

  • General


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