Higher Level Visual Processing - Key Concepts (not finished)

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8 Terms

1
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V1 Simple Cells

emergent property = orientation tuning

b/c of convergence of LGN cells - the circular RFs turn to oblong

2
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V1 Complex Cells

new property = position invariant 

(simple cells are position sensitive bc of distinct on-off regions)

—> responds independent of the position it’s stimulated in the receptive field

3
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V1 Hyper Complex Cells

new property = end stopping

have a length preference

detects end of an edge (within the RF)

4
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Orientation selectivity and tuning

cell responds most strongly to certain orientation; sub-perfect fit has less of a response

5
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Colinear facilitation

6
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Surround suppression

7
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Face/Object Processing

Greebles

8
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Link between emotional expression differences and spatial frequency and orientation content