Expected Value, Reward Outcome, and Temporal Difference Error Representations in a Probabilistic Decision Task
نویسندگان
چکیده
منابع مشابه
Expected value, reward outcome, and temporal difference error representations in a probabilistic decision task.
In probabilistic decision tasks, an expected value (EV) of a choice is calculated, and after the choice has been made, this can be updated based on a temporal difference (TD) prediction error between the EV and the reward magnitude (RM) obtained. The EV is measured as the probability of obtaining a reward x RM. To understand the contribution of different brain areas to these decision-making pro...
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Several models of choice compute the probability of selecting a given option by comparing the expected value (EV) of each option. However, a subtle but important difference between two common rules used to compute the action probability is often ignored. Specifically, one common rule type, the exponential rule, compares EVs via a difference operation, whereas another rule type, the power rule, ...
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ژورنال
عنوان ژورنال: Cerebral Cortex
سال: 2007
ISSN: 1047-3211,1460-2199
DOI: 10.1093/cercor/bhm097