PS102 Lecture Notes - Lecture 5: Morpheme, Pragmatics, Critical Period
Document Summary
Have a nite vocabulary that can be combined in in nite ways. These are regularities of language (not necessarily grammar rules) Meaningful- each word represents an idea (object, action, abstraction, quality) Most language is directed at and around others, social activity. Need to know the sounds, words, sentences of language and principles of conversations. Smallest units of sound recognized as separate in a given language. Do not correspond to letters of the alphabet. Structure and meaning- surface structure is how you phrase the sentence into meaningful units. Ambiguity- when the underlying proposition is not clear. Infant/child has to select out the sounds relevant to language from other vocal sounds in the speech stream. Overextensions- word is used too liberally, speci c word applied to things it should not (daddy=man) Underextensions- general word but child restricts to speci c cases (drink=juice) Preschool complex speech: full sentences, some grammatical aws. Rules of combining words together into meaningful phrases.
