Unit 2.2.6 Vision + Taste Distortions Flashcards

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1
Q

Perceptual distortions

A
  • When an individual’s perceptual interpretation of a stimulus varies from how it is commonly perceived
  • Errors in the judgement/interpretation of sensory stimuli
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2
Q

Synaesthesia

A
  • A rare condition
  • Certain sensations are perceived using another system
  • E.g. a person may associate the letter ‘a’ with orange
  • Grapheme-colour + lexical-gustatory
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3
Q

Synaesthesia - causes

A
  • Can be born with it or develop it
  • Can be inherited in one’s genes or acquired due to injury or drug use in life
  • Having one form = likely to have others
  • Possible that people with it have excess neural connections due to less synaptic pruning during early years
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4
Q

Spatial neglect

A
  • Condition
  • Involving an inability to attend to sensory stimuli
  • On one side of the body
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5
Q

Spatial neglect - causes

A
  • Brain lesion resulting from neurodegenerative diseases, trauma or a hemispheric stroke
  • The hemisphere of the brain that the lesion occurs in dictates which side of space the person can attend to (left lobe injured = right side neglected and vice versa)
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6
Q

Spatial neglect - characteristics

A
  • May gaze in a way that ‘drifts’ towards the side of the brain in which the lesion occurred
  • May begin to display difficulties in dressing/grooming themselves
  • Fail to attend to stimuli on one side of their visual field in obvious ways
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