Choosing between Small, Likely Rewards and Large, Unlikely Rewards Activates Inferior and Orbital Prefrontal Cortex
نویسندگان
چکیده
منابع مشابه
Choosing between small, likely rewards and large, unlikely rewards activates inferior and orbital prefrontal cortex.
Patients sustaining lesions of the orbital prefrontal cortex (PFC) exhibit marked impairments in the performance of laboratory-based gambling, or risk-taking, tasks, suggesting that this part of the human PFC contributes to decision-making cognition. However, to date, little is known about the particular regions of the orbital cortex that participate in this function. In the present study, eigh...
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Humans and animals often must choose between rewards that differ in their qualities, magnitudes, immediacy, and likelihood, and must estimate these multiple reward parameters from their experience. However, the neural basis for such complex decision making is not well understood. To understand the role of the primate prefrontal cortex in determining the subjective value of delayed or uncertain ...
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4 . DELAYED REINFORCEMENT IN CHOICE...........................................................................6 4.1 . UTILITY THEORY AS AN APPROACH TO NORMAL AND PATHOLOGICAL CHOICE IN ANIMALS..........6 4.2 . CHOICE WITHIN THE BRAIN: ‘TOP-DOWN’ AND ‘BOTTOM-UP’ APPROACHES................................8 4.3 . TEMPORAL DISCOUNTING AND IMPULSIVE CHOICE ..............................................
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The ventromedial prefrontal cortex (vmPFC) is thought to be related to emotional experience and to the processing of stimulus and action values. However, little is known about how single vmPFC neurons process the prediction and reception of rewards and punishments. We recorded from monkey vmPFC neurons in an experimental situation with alternating blocks, one in which rewards were delivered and...
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Although much is known about the neural substrates of reward, the question of whether expectation of different types of reinforcers engage distinct or overlapping brain circuitry has not been addressed definitively. In the present study, human subjects, while being scanned with functional magnetic resonance imaging, performed a simple reward-based action selection task to obtain different magni...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 1999
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.19-20-09029.1999