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Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements.

Publication ,  Journal Article
Born, RT; Groh, JM; Zhao, R; Lukasewycz, SJ
Published in: Neuron
June 2000

To track a moving object, its motion must first be distinguished from that of the background. The center-surround properties of neurons in the middle temporal visual area (MT) may be important for signaling the relative motion between object and background. To test this, we microstimulated within MT and measured the effects on monkeys' eye movements to moving targets. We found that stimulation at "local motion" sites, where receptive fields possessed antagonistic surrounds, shifted pursuit in the preferred direction of the neurons, whereas stimulation at "wide-field motion" sites shifted pursuit in the opposite, or null, direction. We propose that activating wide-field sites simulated background motion, thus inducing a target motion signal in the opposite direction. Our results support the hypothesis that neuronal center-surround mechanisms contribute to the behavioral segregation of objects from the background.

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Published In

Neuron

DOI

EISSN

1097-4199

ISSN

0896-6273

Publication Date

June 2000

Volume

26

Issue

3

Start / End Page

725 / 734

Related Subject Headings

  • Visual Cortex
  • Time Factors
  • Saccades
  • Photic Stimulation
  • Neurology & Neurosurgery
  • Motion Perception
  • Male
  • Macaca mulatta
  • Female
  • Eye Movements
 

Citation

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Born, R. T., Groh, J. M., Zhao, R., & Lukasewycz, S. J. (2000). Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements. Neuron, 26(3), 725–734. https://doi.org/10.1016/s0896-6273(00)81208-8
Born, R. T., J. M. Groh, R. Zhao, and S. J. Lukasewycz. “Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements.Neuron 26, no. 3 (June 2000): 725–34. https://doi.org/10.1016/s0896-6273(00)81208-8.
Born RT, Groh JM, Zhao R, Lukasewycz SJ. Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements. Neuron. 2000 Jun;26(3):725–34.
Born, R. T., et al. “Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements.Neuron, vol. 26, no. 3, June 2000, pp. 725–34. Epmc, doi:10.1016/s0896-6273(00)81208-8.
Born RT, Groh JM, Zhao R, Lukasewycz SJ. Segregation of object and background motion in visual area MT: effects of microstimulation on eye movements. Neuron. 2000 Jun;26(3):725–734.
Journal cover image

Published In

Neuron

DOI

EISSN

1097-4199

ISSN

0896-6273

Publication Date

June 2000

Volume

26

Issue

3

Start / End Page

725 / 734

Related Subject Headings

  • Visual Cortex
  • Time Factors
  • Saccades
  • Photic Stimulation
  • Neurology & Neurosurgery
  • Motion Perception
  • Male
  • Macaca mulatta
  • Female
  • Eye Movements