Reduced Punishment Sensitivity in Neural Systems of Behavior Monitoring in Impulsive Individuals
Event-related potentials, Behavior monitoring, Error processing, Anterior cingulate cortex, ERN, Punishment, Motivation
Digital Object Identifier (DOI)
This study measured the response-locked event-related potential during a flanker task with performance-based monetarily rewarding and punishing trials in 37 undergraduate students separated into high- and low-impulsive groups based on a median split on self-reported Barrett Impulsiveness Scale. The high-impulsive group had a smaller medial frontal error-related negativity (ERN) on punishment trials than the low-impulsive group. The medial prefrontal neural system of behavior monitoring, indexed by the ERN, appears less sensitive to punishment signals in normal impulsivity. This reduced punishment sensitivity in impulsivity, a personality variation associated with several mental and personality disorders including ADHD and substance abuse may be related to the tendency to select short-term rewards despite potential long-term negative consequences in these individuals.
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Citation / Publisher Attribution
Neuroscience Letters, v. 397, issues 1-2, p. 130-134
Scholar Commons Citation
Potts, Geoffrey; George, Mary R.; Martin, Laura E.; and Barrett, Ernest S., "Reduced Punishment Sensitivity in Neural Systems of Behavior Monitoring in Impulsive Individuals" (2006). Psychology Faculty Publications. 1728.