PSYC 2700 Lecture Notes - Word Superiority Effect, Sensory Memory, Nystagmus
22 Nov 2013
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Lecture #3 outline: pattern recognition (textbook chapter #3, pages 90-113, template models, feature models, object recognition, rbc theory, agnosia, selective attention (textbook chapter #4, pages 138-149, filter model, attenuation model, multimode model of attention, pattern recognition. Masking: process by which info from sensory memory is masked. We must select for further processing: template models. For everything we experience, we form a mental template (ex. The scanner has a template that knows the correct answers. Limits: inefficient: irregular world, strict match, feature models. Gibson (1969: features of letters, we don"t actually read letters. Our brain knows different features and puts that knowledge together to recognize letters. Count (compare) z to item: harder (slower) if target (z) shares features with distracters. Pritchard (1961: psychological nystagmus (jitter 30-70/sec) Lettvin et al. (1959: microelectrodes into cells of frog retina, recorded activity. Convex edge (small, circular dot moves: shows existence of feature detectors. Hubel & weisel (1963: cat vision, simple cells:
