Neural correlates of proactive and reactive motor response inhibition of gambling stimuli in frequent gamblers.

ABSTRACT: We used functional magnetic resonance imaging to examine whether motivational-salient cues could exert a differential impact on proactive (the restrain of actions in preparation for stopping) and reactive (outright stopping) inhibition. Fourteen high-frequency poker players, and 14 matched non-gambler controls, performed a modified version of the stop-signal paradigm, which required participants to inhibit categorization of poker or neutral pictures. The probability that a stop-signal occurs (0%, 17%, 25%, 33%) was manipulated across blocks of trials, as indicated by the color of the computer screen. Behavioral analyses revealed that poker players were faster than controls in categorizing pictures across all levels of proactive motor response inhibition (go trials). Brain imaging analyses

SUBMITTER: Brevers D 

PROVIDER: S-EPMC5547049 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature