Saccade reward signals in posterior cingulate cortex.

Published

Journal Article

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.

Full Text

Cited Authors

  • McCoy, AN; Crowley, JC; Haghighian, G; Dean, HL; Platt, ML

Published Date

  • December 4, 2003

Published In

Volume / Issue

  • 40 / 5

Start / End Page

  • 1031 - 1040

PubMed ID

  • 14659101

Pubmed Central ID

  • 14659101

International Standard Serial Number (ISSN)

  • 0896-6273

Digital Object Identifier (DOI)

  • 10.1016/s0896-6273(03)00719-0

Language

  • eng

Conference Location

  • United States