Responses of Neurons in Visual Cortex (V1 and V2) of the Alert Macaque to Dynamic Random-Dot Stereograms

Vision Res. 1985;25(3):397-406. doi: 10.1016/0042-6989(85)90065-3.


A substantial proportion of both simple and complex neurons in the cortex subserving central vision are differentially sensitive to binocular disparity of isolated line patterns (local stereopsis), a sensitivity based on a positional disparity between the neuron's receptive fields in the two eyes. In addition, a subset of cortical neurons, nearly all complex neurons, responds to dynamic random-dot stereograms containing no depth cues other than disparity. These neurons are capable of signaling the correct binocular matches among a multitude of false matches in the stereograms (global stereopsis). The discovery of cyclopean neurons in striate cortex, at early stages of the processing neural network for stereoscopic vision provides a new insight of the basic neural mechanisms underlying binocular depth perception.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Brain Mapping
  • Depth Perception / physiology*
  • Evoked Potentials, Visual
  • Macaca mulatta
  • Neurons / physiology*
  • Pattern Recognition, Visual / physiology
  • Visual Cortex / cytology
  • Visual Cortex / physiology*