13 social cues & attachement - 3/9/11!...

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3/9/11 1 Infant-directed speech, motion Infant-directed speech, no motion Adult-directed speech, motion Adult-directed speech, no motion Testing word comprehension • How do you ask a 13-month-old if he/she knows a word for something? Testing word comprehension Basket training
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3/9/11 2 Testing word comprehension Basket test 8 motion no motion 13 month olds: immediate comprehension 9 13 month olds: retention after 24 hours motion no motion 15 month olds: immediate comprehension * 15 month olds: retention after 24 hours 15 month olds: comprehension After 24 hours Immediate *
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3/9/11 3 Why improved comprehension after 24-hour delay? • Children are more systematic in comprehension and better at generalizing after a delay that allows for sleep –e.g. Gomez et al., 2006; Hu et al., 2006 –Mechanism is memory consolidation during sleep • Delay also allows for habituation to the details of the experimental context Summary of Fndings • There are developmental changes in infants ʼ use of speech and motion cues when learning new
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13 social cues & attachement - 3/9/11!...

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