bd2 - A shoe salesman sees many foots throughout the day A...

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2/1/10 1 Brain Development continued…. Neural Wiring After Birth • Experience-Expectant • Experience-Dependent Experience-Expectant Critical periods in vision
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2/1/10 2 Effect of early closure of one eye on the distribution of neurons. Cataracts 1 in every 10,000 Same as Lazy Eye Bilateral deficits actually better Cataracts In general, if the problem isn’t solved by age 4, baby develops impaired vision.
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2/1/10 3 Experience-Expectant Critical periods in vision Critical periods in language development Phoneme Perception “Ra” vs. “La” Phoneme Perception
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2/1/10 4 English speaking children discrimination of foreign phonemes Isolation Studies • Genie Learning a second language
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2/1/10 5 7–13 Learning a second language: Johnson and Newport (1989) The little boy is speak to a policeman.
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Unformatted text preview: A shoe salesman sees many foots throughout the day. A bat flewed into our attic last night. Larry went the home after the party. 7–14 Biology of Language Learning • Broca’s Area: Expressive language (production) • Wernicke’s Area: Receptive language (comprehension) 7–15 Broca's area Primary auditory area Wernicke's area Motor cortex 2/1/10 6 7–16 Learning a second language Kim et al., 1997 Experience-Dependent • Neural connections are created and reorganized throughout life as a function of an individual’s experiences Experience-Dependent • Greenough’s Rats • Violin Players 2/1/10 7 The Aging Brain • Brain weight • Number of neurons • Dendritic density • Nerve conduction velocity Helping the Aging Brain • Stay intellectually engaged • Exercise • Healthy diet...
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