PS366 Lecture Notes - Lecture 14: Mutual Exclusivity, Baby Talk, Universal Grammar
Document Summary
Lecture 14 (last lecture was for written assignment) Only 10% of ids words are spoken in isolation. Rises to 28% if mothers are explicitly asked to teach new words. Words heard in isolation makeup a large fraction of first 50 words. Children learn words that have never appeared in isolation embedding words in fluent speech can help learning. Results: exposure to isolate words during training: Testing with familiar and unfamiliar words embedded in sentences. Between 6 and 7. 5 months, infants start listening longer to familiar words. At 6 months of age, exposure to isolated words does not lead to longer listening times when those familiar words are placed in short sentences. By 7. 5 months, babies listen longer to sentences with familiar than unfamiliar words. By 7. 5 months, babies have started to solve segmentation problem. Prosodic patterns in native language are discriminated by 2 months old: night rates vs. nitrates (same phonological content/different stress)
