The neural basis of risky decision-making in a blackjack task.
To investigate the neural substrates of risky decision making in gambling tasks, we recorded event-related potentials while participants engaged in a modified blackjack game. We focused on the high-conflict condition (probability of losing approximately 50%) and low-conflict condition (probability of losing approximately 20%). We were also interested in the difference between risky and conservative responses under high-conflict conditions. In the 220-320 and 500-600 ms time windows, high-conflict conditions elicited more negative event-related potential deflections than low-conflict conditions. In the latter time window, risky conditions elicited more negative event-related potential deflections than conservative conditions. The N2 (220-320 ms) and N500 (500-600 ms) provide evidence for the dissociation of neural circuits between perceptual and response conflicts.
Yang
Juan
J
Key Laboratory of Personality and Cognition, Ministry of Education, Chongquing, China.
Li
Hong
H
Zhang
Ye
Y
Qiu
Jiang
J
Zhang
Qinglin
Q
D000328:Adult; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D003657:Decision Making / Q000502:physiology*; D004569:Electroencephalography; D004585:Electrooculography; D005071:Evoked Potentials / Q000502:physiology; D005260:Female; D005717:Games, Experimental; D006801:Humans; D008297:Male; D012306:Risk