The present research explored the main factors able to influence the subjects’ choices in the case of decisions and distinguish between high- and low-risk decisions. Behavioral responses (Iowa Gambling Task [IGT]), meta-cognitive strategy, and event-related potential (feedback-related negativity [FRN] and P300) effects were used as predictive markers of gambling behavior. Behavioral activation system (BAS)-reward measure was applied to distinguish between high-BAS and low-BAS. It was found that higher-BAS opted in favor of the immediate reward, with a concomitant dysfunctional metacognition of their strategy. Finally, a consistent “reward bias” affected the high-BAS performance reducing the P300 and FRN in response to unexpected (loss) events. The cortical localization (sLORETA) of ERPs showed the contribution by distinct anterior and posterior areas.
Balconi, M., Finocchiaro, R., Canavesio, Y., Reward Sensitivity (Behavioral Activation System), Cognitive, and Metacognitive Control in Gambling Behavior: Evidences From Behavioral, Feedback-Related Negativity, and P300 Effect, <<THE JOURNAL OF NEUROPSYCHIATRY AND CLINICAL NEUROSCIENCES>>, 2015; 27 (3): 219-227. [doi:10.1176/appi.neuropsych.14070165] [http://hdl.handle.net/10807/70741]
Reward Sensitivity (Behavioral Activation System), Cognitive, and Metacognitive Control in Gambling Behavior: Evidences From Behavioral, Feedback-Related Negativity, and P300 Effect
Balconi, Michela;Finocchiaro, Roberta;
2015
Abstract
The present research explored the main factors able to influence the subjects’ choices in the case of decisions and distinguish between high- and low-risk decisions. Behavioral responses (Iowa Gambling Task [IGT]), meta-cognitive strategy, and event-related potential (feedback-related negativity [FRN] and P300) effects were used as predictive markers of gambling behavior. Behavioral activation system (BAS)-reward measure was applied to distinguish between high-BAS and low-BAS. It was found that higher-BAS opted in favor of the immediate reward, with a concomitant dysfunctional metacognition of their strategy. Finally, a consistent “reward bias” affected the high-BAS performance reducing the P300 and FRN in response to unexpected (loss) events. The cortical localization (sLORETA) of ERPs showed the contribution by distinct anterior and posterior areas.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.