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Cerebral Hemispheric Mechanisms Linking Ambiguous Word Meaning Retrieval and Creativity

The deferral of ambiguity resolution has been thought to be an important component of creativity. The time course of priming of dominant and subordinate meanings of ambiguous words was investigated using a divided visual field priming paradigm with subjects that varied on a measure of creativity. The Wallach-Kogan similarities subtest was used to group 72 subjects into three levels of verbal creativity to compare their performance on the ambiguity resolution task (Burgess & Simpson, 1988a). Results suggest that both the left and right hemispheres contribute to the maintenance of multiple word meanings in highly creative subjects, while less creative subjects show sustained subordinate priming only in the right hemisphere or no sustained subordinate priming. These results support an interactive, collaborative theory of verbal creativity (Bogen & Bogen, 1969) and suggest that there are important individual differences that expand on the basic time course model of hemispheric processing (Burgess & Simpson, 1988a).