Tutorial 2: Visual Processing Disorders
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Questions and Answers

Which are true about visual attention?

  • It is capacity limited (correct)
  • It is selective (correct)
  • Involves fronto-parietal networks (correct)
  • It neglects conscious perception
  • The ventral attention network is responsible for (A), whilst the dorsal attention network is responsible for (B).

  • A: bottom-up processing, B: top-down processing (correct)
  • A: top-down processing, B: bottom-up processing
  • A: selective attention, B: divided attention
  • A: visual memory, B: auditory memory
  • Damage to the V4 pathway causes?

  • Achromatopsia (correct)
  • Color blindness
  • Visual field deficits
  • Prosopagnosia
  • Damage to higher areas of visual processing can cause:

    <p>Object Recognition Deficits</p> Signup and view all the answers

    The inability to process sensory information in a single modality is called?

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

    What are the two categories of visual agnosia?

    <p>Apperceptive and associative</p> Signup and view all the answers

    What defines Apperceptive Visual Agnosia?

    <p>Difficulty assembling features together into common objects</p> Signup and view all the answers

    Which part of visual processing does apperceptive visual agnosia face impairment in?

    <p>Shape Representation</p> Signup and view all the answers

    What are the causes of Apperceptive visual agnosia? (Select all that apply)

    <p>Recovery from cortical blindness</p> Signup and view all the answers

    What is Associative Visual Agnosia?

    <p>Ability to perceive a whole object but difficulty describing it</p> Signup and view all the answers

    Is Apperceptive or Associative Visual Agnosia more common?

    <p>Associative is more common</p> Signup and view all the answers

    Which part of visual processing does associative visual agnosia face impairment in?

    <p>Object Representation</p> Signup and view all the answers

    Bilateral damage to the inferior temporal-occipital junction is associated with:

    <p>Associative Visual Agnosia</p> Signup and view all the answers

    The inability to process visual input in a scene as a whole is known as:

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

    Which subtypes of simultanagnosia correspond to these characteristics: A can recognize elements but not the whole scene, whilst B can see multiple objects but not grasp the meaning of the whole scene?

    <p>A: Dorsal, B: Ventral</p> Signup and view all the answers

    Difficulty recognizing faces is known as:

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

    Acquired prosopagnosia develops from damage to:

    <p>Inferior medial temporo-occipital damage (Fusiform Face Area)</p> Signup and view all the answers

    Which is not a test used to assess Visual Processing and Agnosia?

    <p>None of the above</p> Signup and view all the answers

    What is most commonly reported following a posterior parietal lesion of the right hemisphere?

    <p>Hemispatial neglect</p> Signup and view all the answers

    What is the typical course of hemispatial neglect?

    <p>Often transient with most features lasting no more than a few weeks</p> Signup and view all the answers

    Which of these options are tests of hemispatial neglect? (Select all that apply)

    <p>Asking the patient to lift arms</p> Signup and view all the answers

    What is 'Extinction to Double Simultaneous Stimulation'?

    <p>The inability to perceive two stimuli presented at the same time when one is attended.</p> Signup and view all the answers

    Which of the following are tests for hemispatial neglect?

    <p>Line bisection</p> Signup and view all the answers

    What is are 2 key differences between hemispatial neglect and visual field sensory loss?

    <p>HSN are unaware of deficits and do not compensate for them</p> Signup and view all the answers

    What is the name of an impairment in combining features to create a desired whole?

    <p>Constructional Apraxia</p> Signup and view all the answers

    How might a cube drawing look for a patient with constructional apraxia?

    <p>Squares side by side</p> Signup and view all the answers

    Hemispatial neglect is associated with damage to the:

    <p>Right posterior parietal lobe</p> Signup and view all the answers

    Broca's area is located where?

    <p>Inferior frontal gyrus of the left hemisphere</p> Signup and view all the answers

    Where is Wernicke's area located?

    <p>Superior posterior temporal gyrus</p> Signup and view all the answers

    Non-fluent aphasia typically occurs due to which of the following reasons? (Select all that apply)

    <p>Results from anterior lesions</p> Signup and view all the answers

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