ABSTRACT
The input language addressed to 18 language-learning children (MLU 1.00-3.00) was analysed so as to assess the quality of the semantic-syntactic correspondence posited by the semantic bootstrapping hypothesis. The correspondence appears to be quite satisfactory with little variation from the lower to the higher MLUs. All the persons and things referred to in the corpora were labelled by the mothers using nouns. All the actions referred to were labelled using verbs. Most of the attributive information was conveyed by adjectives. Spatial information was expressed through the use of spatial prepositions. As to the functional categories, all agents of actions and causes of events were encoded as subjects of sentences. All patients, themes, sources, goals, locations, and instruments were encoded as objects of sentences (either direct or oblique). This good semantic-syntactic correspondence may make the child's construction of grammatical categories easier.
Subject(s)
Child Language , Language Development , Maternal Behavior , Semantics , Verbal Behavior , Child, Preschool , Female , Humans , Infant , Male , VocabularyABSTRACT
Metabolic clearance of norepinephrine ( CmNE ) has been calculated in 10 normotensive subjects (NT) and 10 borderline hypertensive subjects (HT) at two different infusion rates of 1-NE. Plasma catecholamines have been determined by radio-enzymatic method from arterial blood samples. In these conditions, CmNE is similar in NT and HT.
