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Related Experiment Videos

Neither strong nor weak space constancy is coded in striate cortex.

B Bridgeman1

  • 1Department of Psychology, University of California, Santa Cruz 95064, USA. bruceb@cats.ucsc.edu

Psychological Research
|February 1, 2000
PubMed
Summary
This summary is machine-generated.

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Space constancy, the brain

Area of Science:

  • Neuroscience
  • Visual Perception
  • Cognitive Science

Background:

  • Space constancy explains how we perceive a stable world despite eye movements.
  • This stability may rely on neural receptive fields fixed in the world, not the retina.
  • Previous research methods conflated retinal and world-centered receptive field organizations.

Purpose of the Study:

  • To investigate the neural basis of space constancy.
  • To test strong and weak forms of the space constancy hypothesis.
  • To reconcile conflicting previous findings on receptive field organization.

Main Methods:

  • Revisiting and relating previously isolated data on receptive fields.
  • Presenting a new figure illustrating receptive field locations in striate cortex.

Related Experiment Videos

  • Analyzing data from tests of space constancy in the striate cortex.

    • Main Results:

    • Early studies contradicted the strong hypothesis of complete eye movement compensation.
    • Recent evidence contradicts the weak hypothesis of compensation for fixation movements.
    • Receptive fields in the striate cortex were found to have constant retinal locations.

    Conclusions:

    • Findings align with modern theories of space constancy.
    • Distinguishes between motor and perceptual visual functions.
    • Differentiates constancy mechanisms across different types of eye movements (pursuit vs. saccades).