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- W1823057531 endingPage "2489" @default.
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- W1823057531 abstract "This study investigated how different expected rewards influence behavior-related neuronal activity in the anterior striatum. In a spatial delayed-response task, monkeys reached for a left or right target and obtained a small quantity of one of two juices (apple, grenadine, orange, lemon, black currant, or raspberry). In each trial, an initial instruction picture indicated the behavioral target and predicted the reward. Nonmovement trials served as controls for movement relationships. Consistent preferences in special reward choice trials and differences in anticipatory licks, performance errors, and reaction times indicated that animals differentially expected the rewards predicted by the instructions. About 600 of >2,500 neurons in anterior parts of caudate nucleus, putamen, and ventral striatum showed five forms of task-related activations, comprising responses to instructions, spatial or nonspatial activations during the preparation or execution of the movement, and activations preceding or following the rewards. About one-third of the neurons showed different levels of task-related activity depending on which liquid reward was predicted at trial end. Activations were either higher or lower for rewards that were preferred by the animals as compared with nonpreferred rewards. These data suggest that the expectation of an upcoming liquid reward may influence a fraction of task-related neurons in the anterior striatum. Apparently the information about the expected reward is incorporated into the neuronal activity related to the behavioral reaction leading to the reward. The results of this study are in general agreement with an account of goal-directed behavior according to which the outcome should be represented already at the time at which the behavior toward the outcome is performed." @default.
- W1823057531 created "2016-06-24" @default.
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- W1823057531 date "2001-06-01" @default.
- W1823057531 modified "2023-10-17" @default.
- W1823057531 title "Influence of Expectation of Different Rewards on Behavior-Related Neuronal Activity in the Striatum" @default.
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- W1823057531 doi "https://doi.org/10.1152/jn.2001.85.6.2477" @default.
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