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Predictive reward signal of dopamine neurons (1998)
| Venue: | Journal of Neurophysiology |
| Citations: | 714 - 12 self |
BibTeX
@ARTICLE{Schultz98predictivereward,
author = {Wolfram Schultz},
title = {Predictive reward signal of dopamine neurons},
journal = {Journal of Neurophysiology},
year = {1998},
volume = {80},
pages = {1--27}
}
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Abstract
Schultz, Wolfram. Predictive reward signal of dopamine neurons. is called rewards, which elicit and reinforce approach behav-J. Neurophysiol. 80: 1–27, 1998. The effects of lesions, receptor ior. The functions of rewards were developed further during blocking, electrical self-stimulation, and drugs of abuse suggest the evolution of higher mammals to support more sophistithat midbrain dopamine systems are involved in processing reward cated forms of individual and social behavior. Thus biologiinformation and learning approach behavior. Most dopamine neucal and cognitive needs define the nature of rewards, and rons show phasic activations after primary liquid and food rewards and conditioned, reward-predicting visual and auditory stimuli. the availability of rewards determines some of the basic They show biphasic, activation-depression responses after stimuli parameters of the subject’s life conditions. that resemble reward-predicting stimuli or are novel or particularly Rewards come in various physical forms, are highly variable salient. However, only few phasic activations follow aversive stim-in time and depend on the particular environment of the subject. uli. Thus dopamine neurons label environmental stimuli with appe- Despite their importance, rewards do not influence the brain titive value, predict and detect rewards and signal alerting and motivating events. By failing to discriminate between different
Keyphrases
dopamine neuron predictive reward signal phasic activation approach behav-j cognitive need approach behavior reward determines social behavior stimulus parameter brain titive value primary liquid activation-depression response variable salient environmental stimulus electrical self-stimulation particular environment aversive stim-in time signal alerting thus biologiinformation auditory stimulus various physical form food reward resemble reward-predicting stimulus receptor ior detect reward dopamine system subject life condition
