Discrete coding of stimulus value, reward expectation, and reward prediction error in the dorsal striatum
نویسندگان
چکیده
منابع مشابه
Discrete coding of stimulus value, reward expectation, and reward prediction error in the dorsal striatum.
To investigate how the striatum integrates sensory information with reward information for behavioral guidance, we recorded single-unit activity in the dorsal striatum of head-fixed rats participating in a probabilistic Pavlovian conditioning task with auditory conditioned stimuli (CSs) in which reward probability was fixed for each CS but parametrically varied across CSs. We found that the act...
متن کاملDiscrete coding of stimulus value , reward expectation , and 12 reward prediction error in the dorsal striatum
45 To investigate how the striatum integrates sensory information with reward information for 46 behavioral guidance, we recorded single-unit activity in the dorsal striatum of head-fixed rats 47 participating in a probabilistic Pavlovian conditioning task with auditory conditioned stimuli (CSs) in 48 which reward probability was fixed for each CS but parametrically varied across CSs. We found ...
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In the current theory of learning, the reward prediction error (RPE), the difference between expected and received reward, is thought to be a key factor in reward-based learning, working as a teaching signal. The activity of dopamine neurons is known to code RPE, and the release of dopamine is known to modify the strength of synaptic connectivity in the target neurons. A fundamental interest in...
متن کاملDopamine reward prediction error coding
Reward prediction errors consist of the differences between received and predicted rewards. They are crucial for basic forms of learning about rewards and make us strive for more rewards-an evolutionary beneficial trait. Most dopamine neurons in the midbrain of humans, monkeys, and rodents signal a reward prediction error; they are activated by more reward than predicted (positive prediction er...
متن کاملIndividual differences and the neural representations of reward expectation and reward prediction error.
Reward expectation and reward prediction errors are thought to be critical for dynamic adjustments in decision-making and reward-seeking behavior, but little is known about their representation in the brain during uncertainty and risk-taking. Furthermore, little is known about what role individual differences might play in such reinforcement processes. In this study, it is shown behavioral and ...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2015
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00097.2015