Vision No.4
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Questions and Answers

What is the term called when we let our eyes follow the movement of light.

  • Smooth motion
  • Descending
  • Tracking (correct)
  • Vision

    • Sherrington proposed

  • We monitor the movement of our eye muscles (correct)
  • We monitor the neural activity in the retina
  • We monitor the neural activity in the cortex
  • We minimise the impact of visible light on our retina

    • There are routes to perceiving movement: retinal movement system and eye-head movement system

    True

    In Helmholtz model what is the term used when we take a copy of the signal to move our eyes?

    <p>Efferent copy or collorary discharge</p> Signup and view all the answers

    Helmholtz proposed that we compare signals from the brain and eye muscle movement rather than retinal image motion and eye muscle movement (Sherrington's model)

    <p>True</p> Signup and view all the answers

    What happens when we stare at the same motion for a period of time?

    <p>A direction specific threshold is reached.</p> Signup and view all the answers

    Why do people drive faster in foggy conditions?

    <p>Reduction in contrast lead to perceiving that we are driving slower.</p> Signup and view all the answers

    What is apparent motion?

    <p>Stationary images presented in a rapid succession lead to the brain interpreting them as smooth motion</p> Signup and view all the answers

    Where does V5 (MT) receive motion information?

    <p>Magnocellular layers of the LGN</p> Signup and view all the answers

    Experiments using the optokinetic drum measures

    <p>Vection</p> Signup and view all the answers

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