PSYC 1001 Lecture 17: PSYC1001 Chapter 8 C&D
8 Dec 2015
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Initial vocalizations same across all languages: 6 months babbling sounds begin to resemble surrounding, 12 months first word language. Similar across cultures words for parents. Receptive vs. expressive language differences (comprehension vs. production: infant vocalizations are initially similar across languages, involving all phonemes. This is similar across cultures: while few words are spoken (expressive language) at this stage, research indicates that very young children may actually understand (receptive language) more language than they can produce, 18-24 months vocabulary spurt. Mean length of utterance increases: 24 months combine words, 36 months complex ideas, plural, past tense. Overregularization: underextensions occur when a child incorrectly uses a word to describe a, at about the age of 18-24 months, the previously very slow acquisition of new words suddenly spurts. This proceeds at a dizzying pace, by the first grade the average child has a vocabulary of approx.
