Provides a portrait of the structure of the categories and tests the correlation between family resemblance and prototypicality of items. (Author)

The relations between the meanings of verbs and the syntactic structures in which they appear were investigated in 5 experiments involving approximately 156 college students (most attended the University of Pennsylvania). Findings support the view that the syntax of verbs is a regular, although complex, projection from their semantics. (SLD)

A network model of logical and semantic structures from which speakers or writers generate linguistic messages at the discourse level is presented. (Author)

Six studies, with 174 three-year-olds in California, investigated whether children's knowledge of a label for an object excluded the possibility that they would accept another label for the object. Results indicate that mutual exclusivity motivates children to learn terms for attributes, substances, parts, and objects. (TJH)

Studies of patients with category-specific agnosia (CSA) have given rise to multiple theories of object recognition, most of which assume the existence of a stable, abstract semantic memory system. We applied an episodic view of memory to questions raised by CSA in a series of studies examining normal observers' recall of newly learned attributes…

Two models are considered for how people verify explicitly quantified sentences. To test the models, three reaction time experiments required subjects to verify statements quantified by some or all. The results show that some-statements took longer to verify than all-statements. (Author/DEP)