False memories and semantic lexicon arrangement.

A description of semantic lexicon arrangement is a central goal in examinations of language processing. There are a number of ways in which this description has been cast and a host of different mechanisms in place for providing operational descriptions (e.g., feature sharing, category membership, associations, and co-occurrences). We first review two views of the structure of semantic space and then describe an experiment that attempts to adjudicate between these two views. The use of a false memory paradigm provides us with evidence that supports the notion that the semantic lexicon is arranged more by association than by categories or features.