This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.IntroductionIn functional magnetic resonance imaging research, nucleus accumbens(NAcc) activation spontaneously increases before financial risk taking. Asanticipation of diverse rewards can increase NAcc activation, evenincidental reward cues may influence financial risk taking.
Specific Aims To investigate whether incidental emotional stimuli can activateemotion-related brain regions, and test if these activations influencechoice behavior.MethodsSubject (15 heterosexual men) played a gambling task, where incidentalemotional stimuli were inserted prior to the gamble (erotic pictures,insect and snake pictures, and neutral pictures). Using event-relatedfunctional magnetic resonance imaging we recorded brain activity prior toand during choice, and during reward outcomes.
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