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Differentiating Phonotactic Probability And Neighborhood Density In Adult Word Learning, Holly L. Storkel, Jonna Armbrüster, Tiffany Hogan

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: The purpose of this study was to differentiate effects of phonotactic probability, the likelihood of occurrence of a sound sequence, and neighborhood density, the number of words that sound similar to a given word, on adult word learning. A second purpose was to determine what aspect of word learning (viz., triggering learning, formation of an initial representation, or integration with existing representations) was influenced by each variable.
Method: Thirty-two adults were exposed to 16 nonwords paired with novel objects in a story context. The nonwords orthogonally varied in phonotactic probability and neighborhood density. Learning was measured following 1, 4, …