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Questions and Answers

What is the difference between central and peripheral suppression?

  • Central suppression inhibits the image from the fovea of the deviating eye, while peripheral suppression enhances the image from the peripheral retina of the deviating eye
  • Central suppression inhibits the image from the peripheral retina of the deviating eye, while peripheral suppression inhibits the image from the fovea of the deviating eye
  • Central suppression inhibits the image from the fovea of the deviating eye, while peripheral suppression inhibits the image from the peripheral retina of the deviating eye (correct)
  • Central suppression enhances the image from the fovea of the deviating eye, while peripheral suppression inhibits the image from the peripheral retina of the deviating eye
  • What is suppression in the context of visual cortex?

  • Enhancement of image from both eyes when one eye is closed
  • Enhancement of image from one eye when both eyes are open
  • Inhibition of image from one eye when both eyes are open (correct)
  • Inhibition of image from both eyes when one eye is closed
  • What is anomalous retinal correspondence (ARC)?

  • A condition in which corresponding retinal elements acquire different subjective visual directions
  • A condition in which both eyes are misaligned
  • A condition in which the visual cortex suppresses the image from one eye
  • A condition in which non-corresponding retinal elements acquire a common subjective visual direction (correct)
  • Study Notes

    Suppression in Visual Cortex

    • Suppression refers to the reduction or elimination of visual signals from one eye to prevent conflicting information from reaching the brain.

    Central vs Peripheral Suppression

    • Central suppression: occurs in the visual cortex, where the brain actively suppresses the image from one eye to avoid double vision.
    • Peripheral suppression: occurs at the retinal or optic nerve level, where the signal from one eye is blocked or reduced before it reaches the brain.

    Anomalous Retinal Correspondence (ARC)

    • A condition where the brain incorrectly matches the images from the two eyes, resulting in abnormal depth perception and strabismus (eye misalignment).
    • In ARC, the brain attempts to compensate for the misalignment by suppressing the image from one eye, leading to vision problems.

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    "Test Your Knowledge on Visual Suppression and Eye Disorders" - Challenge yourself with this quiz on the concept of suppression in visual perception and eye disorders like astigmatism and anisometropia. Learn about central and peripheral suppression and how it affects our vision. Sharpen your understanding of diplopia and confusion caused by suppression. Take this quiz to improve your knowledge on eye health and perception.

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