Event-related potentials elicited by errors during the stop-signal task. I. Macaque monkeys.

Godlove DC, Emeric EE, Segovis CM, Young MS, Schall JD, Woodman GF
J Neurosci. 2011 31 (44): 15640-9

PMID: 22049407 · PMCID: PMC3241968 · DOI:10.1523/JNEUROSCI.3349-11.2011

The error-related negativity (ERN) and positivity (Pe) are components of event-related potential (ERP) waveforms recorded from humans and are thought to reflect performance monitoring. Error-related signals have also been found in single-neuron responses and local-field potentials recorded in supplementary eye field and anterior cingulate cortex of macaque monkeys. However, the homology of these neural signals across species remains controversial. Here, we show that monkeys exhibit ERN and Pe components when they commit errors during a saccadic stop-signal task. The voltage distributions and current densities of these components were similar to those found in humans performing the same task. Subsequent analyses show that neither stimulus- nor response-related artifacts accounted for the error-ERPs. This demonstration of macaque homologues of the ERN and Pe forms a keystone in the bridge linking human and nonhuman primate studies on the neural basis of performance monitoring.

MeSH Terms (16)

Analysis of Variance Animals Brain Mapping Conflict (Psychology) Electroencephalography Evoked Potentials Female Inhibition (Psychology) Macaca Male Neuropsychological Tests Photic Stimulation Psychomotor Performance Reaction Time Saccades Signal Detection, Psychological

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