Saccade reward signals in posterior cingulate cortex.
Movement selection depends on the outcome of prior behavior. Posterior cingulate cortex (CGp) is strongly connected with both limbic and oculomotor circuitry, and CGp neurons respond following saccades, suggesting a role in signaling the motivational outcome of gaze shifts. To test this hypothesis, single CGp neurons were studied in monkeys while they shifted gaze to visual targets for liquid rewards that varied in size or were delivered probabilistically. CGp neurons responded following saccades as well as following reward delivery, and these responses were correlated with reward size. CGp neurons also responded following the omission of predicted rewards. The timing of CGp activation and its modulation by reward could provide signals useful for updating representations of expected saccade value.
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- Saccades
- Reward
- Neurons
- Neurology & Neurosurgery
- Male
- Macaca mulatta
- Gyrus Cinguli
- Cerebral Cortex
- Animals
- 5202 Biological psychology
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Saccades
- Reward
- Neurons
- Neurology & Neurosurgery
- Male
- Macaca mulatta
- Gyrus Cinguli
- Cerebral Cortex
- Animals
- 5202 Biological psychology