PSYCH-190 Lecture Notes - Lecture 10: Fast Mapping, Psych, 18 Months
9 Sep 2020
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Infants as young as 4 months recognize their own name. By 6 months, infants address the problem of references, associating words with meaning (as shown by looking toward mother or father when someone says mommy or. 6-8 months, infants recognize new words and remember them for weeks. 10 month old infants comprehend, but cannot say, 11-154 words. Productive vocabulary: words that infants can say or sign. Infants produce their first words at 12 months on average. But they can understand full commands and sentences before. A few exceptions: color words, number words. Collection of words that are colors but they don"t yet understand what they truly mean (bottle is purple, but the child says yellow) First 50 words slowly, then suddenly the child"s vocabulary shoots up 18 months. Word learning begins extremely slowly but accelerates quickly. 5. 5. per day from 1. 5 6 years. 20. 5 per day from 1st to 5th grade.
