Agnosia And Prosopagnosia Flashcards
What is agnosia
Loss of ability to recognise objects faces and everuthing
What part of the brain for poeole with agnosia are damaged ?
Occipital or inferior temporal cortex
What are the types of agnosia
Apperceptive and associative
Outline apperceptive agnosia
Damage to stage 1- local features
Can’t recognise objects
But can have knowledge about object
Can’t perform copying tasks
Outline associative agnosia
Damage to stage 3 - object recognition
Intact knowledge
Can’t identify and name object
What is prosopagnosia ?
Face blindness
Knows voice
Doesn’t know face
Overt
What is an example of covert recognition?
Peak skin conductance
Amplitudes larger for familiar faces
E. G for prosopagnosia
Swear if you recognise
What do capgras have a loss of?
And route
Emotional response
Yellow route dorsal covert
Prosopagnosia has a loss of what?
And route
Red ventral route overt
What is the capgras delusion?
Recognition without feeling
May recognise someone but deny knowing them
Reject them but not on phone
No emotional response
What is synaesthesia ?
Info to stimulate a sense stimulates all senses
Senses are interconnected
Advantages of synaesthesia are ?
Multi sensory perception
More efficient and accurate processing
What does colour influence ?
Taste, e.g red wine cake colour
What does sound influence ?
Hardness , volume higher is crunchier
What does vision influence
Improve hearing by lip syncing
