Presents the Lexical/Semantic Hypothesis, which proposes that early learning is more lexically oriented, and that early word combinations can be explained by more semantically oriented accounts than the Full Competence Hypothesis. The article also replaces the Grammatical Infinitive Hypothesis with the Modal Hypothesis. (32 references) (Author/CK)

This paper examines the perceptual processes that underlie normal language acquisition with relation to perceptual dysfunctions in the aphasic child. Experiments are cited which seem to indicate that auditory dyfunctions may underlie language impairment. Experimental studies of the linguistic systems of the aphasic child seem to support the theory…