Cognitive Psychology- Visual agnosia

drnaga

Par 100 posts (V.I.P)
visual agnosia: an inability to recognize visual objects that is neither a function of general intellectual loss nor a loss of basic sensory abilities

Apperceptive agnosia (Benson & Greenberg, 1969)

  • soldier who suffered brain damage from carbon monoxide poisoning
  • recognized objects through feel, smell, or sound
  • could not distinguish between a circle and a square
  • could not recognize faces or letters
  • could not copy shapes shown to them
  • could discriminate colors and which direction an object was moving
  • was able to register visual information, but could not combine that information into a perceptual experience

Associative agnosia (Ratcliff & Newcombe, 1982)

able to recognize simple shapes and can copy shapes shown to them
unable to recognize such objects
anchor --> umbrella
apperceptive agnosia --> early perceptual processes are disrupted
associative agnosia --> later processes (pattern recog) are disrupted.
 

drnaga

Par 100 posts (V.I.P)
Visual perception can be divided into an early phase in which shapes and objects are extracted from the visual scene and into a later phase in which the shapes and objects are recognized (Anderson, 1995)
 
visual agnosia: an inability to recognize visual objects that is neither a function of general intellectual loss nor a loss of basic sensory abilities

Apperceptive agnosia (Benson & Greenberg, 1969)

  • soldier who suffered brain damage from carbon monoxide poisoning
  • recognized objects through feel, smell, or sound
  • could not distinguish between a circle and a square
  • could not recognize faces or letters
  • could not copy shapes shown to them
  • could discriminate colors and which direction an object was moving
  • was able to register visual information, but could not combine that information into a perceptual experience

Associative agnosia (Ratcliff & Newcombe, 1982)

able to recognize simple shapes and can copy shapes shown to them
unable to recognize such objects
anchor --> umbrella
apperceptive agnosia --> early perceptual processes are disrupted
associative agnosia --> later processes (pattern recog) are disrupted.

Hey friend, thanks for sharing such a nice article, i am really thankful to you. Well, cognitive psychology is the medical research of brain and psychological function, such as learning, memory, interest, belief, thinking. I am also uploading a document where you can find more detailed information.
 

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jayashreemarg

Par 100 posts (V.I.P)
Cognitive psychology is the study of mental processes such as "attention, language use, memory, perception, problem solving, creativity, and thinking".
 
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