An Eye-Movement Analysis of Ambiguity Resolution: Beyond Meaning Access.

The research reported here addresses the status of the unselected meaning of a lexically ambiguous word in developing the larger meaning of the text by independently manipulating lexical and discourse-level variables in the text. In a series of 3 eye-movement experiments, participants read passages that contained 2 occurrences of an ambiguous word. The meaning of the ambiguous word either switched from 1 encounter to the next (Experiments 1 and 2) or remained consistent across encounters (Experiments 1 and 3), and the authors manipulated whether the second occurrence of the ambiguous word referred to the same discourse entity or a different entity. Facilitation was observed in initial processing time on ambiguous words when the meaning was consistent from first to second encounter, regardless of referential relations. Switching the meaning between encounters did not influence how accessible the initially unselected meaning was, but it did produce processing difficulty in the post-target region. These results suggest that the lexical status of the (initially) unselected meaning remains unchanged while the availability of this information for the purposes of text integration changes with changes in the configuration of the discourse representation. [ABSTRACT FROM AUTHOR]