PSYC 2700 Lecture Notes - Lecture 6: Experimental Psychology, Visual Perception, Visual Processing
17 May 2017
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Psyc 2700 top-down processing and the effects of prior experience. *all content belongs to jordan richard schoenherr & where cited in lecture slides* Past experience, esp. in form of contextual knowledge, influences our perceptual system. Bottom-up processing cognitive operations use stimulus info. Gregory (1970; 1980): m ller-lyer illusion: line w/ inward pointing arrows appears larger, attributed to regularities in our environment. Cross-cultural evidence suggests: if you don"t grow up in environment w/ 90 walls, you won"t produce bias to same extent (segall, campbell, & herskovits, 1966) Issues of distinctiveness/competition (recall uncertainty" in info theory: semantic contexts effects: performance improved for word recognition if word presented w/ semantically similar words (e. g. , pen, paper, ink, eraser) or in sentence. Word superiority effect (reicher, 1969): *chart in lecture slide* Evidenced when ppl are more accurate in identifying a letter when it"s part of word: recall discussion of info theory & reduction of uncertainty.
