Sensation And Perception Flashcards
What is perception
The result of our brains interpretation and understanding of sensory inputs
What are the different types of lateralisation
Contraleral- other side
Ipsilateral- same side
What is gestalt psychology
The sum equals more than the parts
What are the principles of gestalt psychology
Proximity Similarity Connectedness Common Fate Good continuation Closure
List the 3 recognition examples
Rapid
Generalised
Degraded
How does recognition occur
Template matching
Compare input to stored template (picture in head)
What’s the brain region linked to face processing
Fusisorm face area
(Fmri and pet show increased activity to faces)
Damage leads to face recognition problems
What’s prosopagnosia
Failure to recognise faces
What’s double dissociation?
-landmark description
Where
Ventral lesion - fine
-object description
What
Dorsal lesion- fine
What happened with 34 year old patient DF
Perception problem - what deficit
Visual form agnosia
Couldn’t recognise or copy pictures
Couldn’t report orientation of slot
What happened with 55 year old stroke patient RV
Optic ataxia
Where deficit
What happened with patient GS
Could see visuals, make hand gestures
Couldn’t describe functions of objects
What is change blindness
The inability to notice large visual changes when they occur during a disruption
What’s the flicker task
Blank screen disrupts change signal
DV- response time / accuracy
How are changes detected
Encode
Maintain
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