01:830:401 Lecture Notes - Lecture 10: Lexical Decision Task, Semantic Similarity, Cognitive Neuroscience
4 Apr 2016
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Document Summary
Reading as a learned expert system: reading and writing is a cultural invention, recent - literacy emerged 5000 years ago, and became universal in western culture. Diversity of written language: written codes for languages vary a lot. Normal visual word recognition: cognitive: visual word recognition not strongly affected by word length (parallel processing, may involve processing letter clusters rather than individual letters, word superiority effect. Detection of a single letter r faster in a context of a word carpet or plausible nonword harpot than random string ctrpae. Lexical decision bringe faster to reject than brinj: evidence for top-down effects in visual processing. As a person who knows english, when trying to nd a letter in a word, we know carpet is a potential word: cover letters. Could be an r or b or p but seen as an r because r makes it a word: evidence for top down semantic effects is equivocal.
