BCS 111 Lecture 6: One Class BCS 111 lecture 6
30 Jul 2018
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Document Summary
A huge amount of cortex is dedicated to vision. When we look at visual areas in the brain, we look at diagrams of an unfolded cortex. Macaque v1 treated with electro-chemical sensitive dye, exposed to target stimulus, sacrificed and sectioned. Progressively higher areas have larger receptive fields. Each higher area gets input from a sample of cells in lower areas. Inferior temporal lobe (fusiform gyrus) preferentially processes objects and faces (fusiform face area) Area of the brain that is active during face recognition. No obvious measure of similarity joins the stimuli that cause a particular it cell to fire. What a cell selects for seems to arise from experience. Infants only minutes old prefer faces to other objects (even face-like) Facilitation of face processing may enhance facial memory. Pareidolia the phenomenon of seeing meaningful arrangements in randomly arranged items. Similar effect for dog faces in dog-show judges. Experience can cause new items to be processed in the fusiform face area.
