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PERCEPTION (1) Features integration theory (FIT) (2) Recognization by…
PERCEPTION
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INTRODUCTION
The word 'perception' can be used in two different ways. It can refer to out experience of seeing, hearing, touching, tasting, and smelling objects and individuals around us.
BOTTOM-UP PROCESSING
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TOP-DOWN PROCESSING
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:<3: Gestalt Approach 
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Experience-dependent plasticity experiment
:<3:Experiment by Gauthier (1999)
:<3:Used FMRI to measure the activity in FFA when subjects in the experiment are shown human faces vs greebles
:explode: Greebles - computer generated images
Where does our pereptual intelligence comes from ?
:black_small_square: knowledge stored from all our experiences of the world
(top down)
:black_small_square: brain "intelligent processing"
:arrow_forward: evolution
:arrow_forward: experience-dependent plasticity to respond to new experiences (eg. Greebles experiment )
SUMMARY
:<3: Top down processing involves :
-gestalt principles of organization
-heuristics (shortcut) and algorithm approaches
:<3: 4 reasons why visual perception is hard for a computer compared to a human :
*stimulus received from our receptors may not be clear
*objects need to be separated intelligently
:<3: There are neurons in the temporal lobe (eg. FFA area) which can be trained to specialize in perceiving human faces - evidence for process of visual perception in the brain.
:<3:Perception = TD & BU processing