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Initial tracking conditions modulate the gain of visuo-motor transmission for smooth pursuit eye movements in monkeys.

Publication ,  Journal Article
Schwartz, JD; Lisberger, SG
Published in: Vis Neurosci
1994

Smooth pursuit eye movements allow primates to keep gaze pointed at small objects moving across stationary surroundings. In monkeys trained to track a small moving target, we have injected brief perturbations of target motion under different initial conditions as probes to read out the state of the visuo-motor pathways that guide pursuit. A large eye movement response was evoked if the perturbation was applied to a moving target the monkey was tracking. A small response was evoked if the same perturbation was applied to a stationary target the monkey was fixating. The gain of the response to the perturbation increased as a function of the initial speed of target motion and as a function of the interval from the onset of target motion to the time of the perturbation. The response to the perturbation also was direction selective. Gain was largest if the perturbation was along the axis of ongoing target motion and smallest if the perturbation was orthogonal to the axis of target motion. We suggest that two parallel sets of visual motion pathways through the extrastriate visual cortex may mediate, respectively, the visuo-motor processing for pursuit and the modulation of the gain of transmission through those pathways.

Duke Scholars

Published In

Vis Neurosci

DOI

ISSN

0952-5238

Publication Date

1994

Volume

11

Issue

3

Start / End Page

411 / 424

Location

England

Related Subject Headings

  • Visual Pathways
  • Visual Cortex
  • Random Allocation
  • Pursuit, Smooth
  • Psychomotor Performance
  • Neurology & Neurosurgery
  • Motion Perception
  • Male
  • Macaca mulatta
  • Fixation, Ocular
 

Citation

APA
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ICMJE
MLA
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Schwartz, J. D., & Lisberger, S. G. (1994). Initial tracking conditions modulate the gain of visuo-motor transmission for smooth pursuit eye movements in monkeys. Vis Neurosci, 11(3), 411–424. https://doi.org/10.1017/s0952523800002352
Schwartz, J. D., and S. G. Lisberger. “Initial tracking conditions modulate the gain of visuo-motor transmission for smooth pursuit eye movements in monkeys.Vis Neurosci 11, no. 3 (1994): 411–24. https://doi.org/10.1017/s0952523800002352.
Schwartz, J. D., and S. G. Lisberger. “Initial tracking conditions modulate the gain of visuo-motor transmission for smooth pursuit eye movements in monkeys.Vis Neurosci, vol. 11, no. 3, 1994, pp. 411–24. Pubmed, doi:10.1017/s0952523800002352.
Journal cover image

Published In

Vis Neurosci

DOI

ISSN

0952-5238

Publication Date

1994

Volume

11

Issue

3

Start / End Page

411 / 424

Location

England

Related Subject Headings

  • Visual Pathways
  • Visual Cortex
  • Random Allocation
  • Pursuit, Smooth
  • Psychomotor Performance
  • Neurology & Neurosurgery
  • Motion Perception
  • Male
  • Macaca mulatta
  • Fixation, Ocular