Neuronal Activity Related to Reward Value and Motivation in Primate Frontal Cortex

In several areas of the macaque brain, neurons fire during delayed-response tasks at a rate determined by the value of the reward expected at the end of the trial. The activity of these neurons might be related to the value of the expected reward or to the degree of motivation induced by expectation...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2004-04, Vol.304 (5668), p.307-310
Main Authors: Roesch, Matthew R., Olson, Carl R.
Format: Article
Language:English
Subjects:
Action Potentials
Anatomical correlates of behavior
Animal behavior
Animals
Behavioral psychophysiology
Biological and medical sciences
Brain
Brain chemistry
Brain Hemisphere Functions
Conditioned response
Conditioned responses
Cues
Electrodes
Expectation
Eye Movements
Frontal Lobe - physiology
Fundamental and applied biological sciences. Psychology
Genomes
Limbic system
Macaca
Macaca mulatta
Magnetic Resonance Imaging
Male
Motivation
Motor Cortex - physiology
Motor Reactions
Neurons
Neurons - physiology
Neuropsychology
Observations
Open reading frames
Persistence
Physiological aspects
Primates
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor Performance
Research universities
Reward
Saccades
Stimuli
Synteny
Twins
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Summary:In several areas of the macaque brain, neurons fire during delayed-response tasks at a rate determined by the value of the reward expected at the end of the trial. The activity of these neurons might be related to the value of the expected reward or to the degree of motivation induced by expectation of the reward. We describe results indicating that the nature of reward-dependent activity varies across areas. Neuronal activity in orbitofrontal cortex represents the value of the expected reward, whereas neuronal activity in premotor cortex reflects the degree of motivation.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1093223