PSYC 215 Chapter Notes - Chapter 3: Extrastriate Cortex, Mach Bands, Uniform Coloring

• School: Emory University
• Department: Psychology
• Course: PSYC 215
• Professor: Daniel Dilks

Document Summary

Image on retina --> photoreceptors respond to light --> transduce to nerve cells (ganglion) --> optic nerve --> lgn of thalamus --> v1 "striate cortex" --> v(cid:1006)/(cid:1007)/(cid:1008) . Dorsal pathway -- parietal lobes; info on where things are located, guiding mvmts. Ventral pathway -- temporal lobes; object recog: top-down and bottom-up processing. Reciprocal connections: areas that sent output also receive input. Top-down : actively seek and extract sensory info: learning to see. Biological strx of brain + experience: building from the bottom up: from features to objects, processing features, the building blocks of perception. Intensity of light info lost by the focus on edges. Grouping principles: effect of proximity : things closer are more likely to be grouped tgt, uniform connectedness: vertical organization that overrules proximity, relatability, colinearity: lines group when orientations are close to that of neighbor"s. Filling in the gaps: subject/illusory contour: border not physically present in stimulus but filled in by visual system.