Focuses on an important aspect of conceptual thinking--the role of causal notions in the content of our concepts. Presents a set of experiments introducing the Illusion of Explanatory Depth (IOED), in which he shows that people confidently believe they know how things work, but when challenged are forced to acknowledge that their understanding is…

Considers two notable recent philosophical theories of concepts in relation to some challenges set by Wittgenstein in his notorious private language argument. The challenge is formulated in terms of constraints on the explanation of the relation between thought and language. Shows how these theories of concepts relate to constraints that arise…

Drawing on the notion of the domain-specificity of recognition, reviews evidence on the effect of language in classification of and reasoning about categories from different domains. Looks at anthropological infant classification, and preschool categorization literature. Suggests the causal nature and indicative power of animal categories seem to…

Attempts to model the human production of language under time constraints based on an analysis of hesitation and spontaneous self-repair in a corpus of spoken human dialogs. The model used divides language production into conceptualization of the message to be conveyed, formulation of words and grammatical structure for the message, and…