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pubmed:abstractText |
Over the last several years, it has become apparent that there are critical problems with the hypothesis that brain dopamine (DA) systems, particularly in the nucleus accumbens, directly mediate the rewarding or primary motivational characteristics of natural stimuli such as food. Hypotheses related to DA function are undergoing a substantial restructuring, such that the classic emphasis on hedonia and primary reward is giving way to diverse lines of research that focus on aspects of instrumental learning, reward prediction, incentive motivation, and behavioral activation.
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pubmed:affiliation |
Division of Behavioral Neuroscience, Department of Psychology, University of Connecticut, Storrs, CT, 06269-1020, USA. john.salamone@uconn.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Review,
Research Support, N.I.H., Extramural
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