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Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus

Publication ,  Journal Article
Caruso, V; Pages, D; Sommer, MA; Groh, J
Published in: Journal of Neurophysiology
December 20, 2017

We accurately perceive the visual scene despite moving our eyes ~3 times per second, an ability that requires incorporation of eye position and retinal information. In this study, we assessed how this neural computation unfolds across three interconnected structures: frontal eye fields (FEF), intraparietal cortex (LIP/MIP), and the superior colliculus (SC). Single unit activity was assessed in head-restrained monkeys performing visually-guided saccades from different initial fixations. As previously shown, the receptive fields of most LIP/MIP neurons shifted to novel positions on the retina for each eye position, and these locations were not clearly related to each other in either eye- or head-centered coordinates (defined as hybrid coordinates). In contrast, the receptive fields of most SC neurons were stable in eye-centered coordinates. In FEF, visual signals were intermediate between those patterns: around 60% were eye-centered, whereas the remainder showed changes in receptive field location, boundaries, or responsiveness that rendered the response patterns hybrid or occasionally head-centered. These results suggest that FEF may act as a transitional step in an evolution of coordinates between LIP/MIP and SC. The persistence across cortical areas of mixed representations that do not provide unequivocal location labels in a consistent reference frame has implications for how these representations must be read-out.

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Published In

Journal of Neurophysiology

DOI

ISSN

1522-1598

Publication Date

December 20, 2017

Volume

In Press

Publisher

American Physiological Society

Related Subject Headings

  • Visual Perception
  • Superior Colliculi
  • Saccades
  • Parietal Lobe
  • Neurology & Neurosurgery
  • Macaca mulatta
  • Frontal Lobe
  • Electrophysiological Phenomena
  • Electroencephalography
  • Animals
 

Citation

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Caruso, V., Pages, D., Sommer, M. A., & Groh, J. (2017). Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus. Journal of Neurophysiology, In Press. https://doi.org/10.1152/jn.00584.2017
Caruso, valeria, daniel Pages, M. A. Sommer, and jennifer Groh. “Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus.” Journal of Neurophysiology In Press (December 20, 2017). https://doi.org/10.1152/jn.00584.2017.
Caruso, valeria, et al. “Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus.” Journal of Neurophysiology, vol. In Press, American Physiological Society, Dec. 2017. Manual, doi:10.1152/jn.00584.2017.
Caruso V, Pages D, Sommer MA, Groh J. Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus. Journal of Neurophysiology. American Physiological Society; 2017 Dec 20;In Press.

Published In

Journal of Neurophysiology

DOI

ISSN

1522-1598

Publication Date

December 20, 2017

Volume

In Press

Publisher

American Physiological Society

Related Subject Headings

  • Visual Perception
  • Superior Colliculi
  • Saccades
  • Parietal Lobe
  • Neurology & Neurosurgery
  • Macaca mulatta
  • Frontal Lobe
  • Electrophysiological Phenomena
  • Electroencephalography
  • Animals