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Language Devel. 3/9

allomorph usage based on speech sound, voicing, and manner
phonological have equivalent meaning but used at different times, ex. a & an
morphological adjentive form (artist, teacher)& prefixes (unknown)
syntactic sentence structure, relate to pronouns, hard to use ex. they, we, he, she, i, their
first meaningful speech single word utterances, follow adult speech
appear first nouns
appear second modifiers & verb-like words
first word categories food, animals, toys, people
MIDLEVEL OF GENERALITY tend to go with middle term ex. vehicle->cars->mustang
performatives single word utterances produced while in action
holophrases single word utterances, 4 functions: declarative, imperative, interrogative, exclamatory
declarative a statement, not punctuating, punctuate thru paralinguistics, no syntax
imperative command, punctuate with paralinguistics
interrogative to question, no syntax
exclamatory excited, when sees parent or ouch or no, more exaggerated paralnguistics
early language usage discuss objects, events, relations,
progressive adaptation probably inaccurate meaning, limited cognitive knowledge, ex. dog = 4 legs apply to cows
lexical growth starts slow and dramatically increases at 18-24 months (vocabulary explosion)