This monograph studies research conducted for the purpose of investigating the relationship between vocabulary recognition and morphological knowledge during the early and middle elementary school years. The findings suggest that lexical development can be characterized in terms of increasing morphological complexity, and as a child ages, the proportion of known complex words that the child figured out by analyzing their morphological structure increased.

In a compelling defense of the speculative approach to the philosophy of mind, Jerry Fodor argues that, while our best current theories of cognitive psychology view many higher processes as computational, computation itself presupposes an internal medium of representation. Fodor's prime concerns are to buttress the notion of internal representation from a philosophical viewpoint, and to determine those characteristics of this conceptual construct using the empirical data available from linguistics and cognitive psychology.