PSYC 2010U Lecture Notes - Auditory Cortex, Receptive Aphasia, Conduction Aphasia

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25 Nov 2012
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Speech and comprehension: psycholinguistics: branch of psychology devoted to study verbal behaviour. Left hemisphere showed larger contrast and thus, it plays a larger role in analyzing speech: phonemes: elements (smallest units) of speech. /p/+/i/+/n/ : voice-onset time: a way in which we discriminate among phonemes. It is the delay between the initial consonant sound and vibrating vocal chords (voicing). Eg: there is a delay in voicing for pa compared to. Ba although the initial sound (made with the mouth) is the same: phonemic discriminations initially occur in both hemispheres. We recognize speech sounds in larger chunks such as syllables: sanders, newport, and neville: played a continuous string of nonsense syllables to listeners. Chunks of this stream were given to participants to study as words. Involves different brain mechanisms than learning word meanings: syntactical clues are designed by: Word order: tell us who does what do whom (in english), for example a xs the b : a does something to b.

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