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Self-monitoring and control in speech production -

The role of working memory and selection ability in language production from the single word to narrative level

Randi Martin - Department of Psychology, Rice University, USA

Previous work in our lab has suggested that during language production at the single word and sentence level, different roles are played by working memory and the ability to select target words or structures from competitors. In current work, we are examining the extent to which these findings hold during more spontaneous speech at the narrative level for acute stroke patients, tested first within 72 hrs post-stroke.  Based on our claim that sematic WM is used to hold multiple lexical-semantic representations during phrasal planning, we predicted that semantic working memory but not phonological working memory would be related sentence elaboration measures and neither would be related to grammatical measures like proportion of closed class words.  Based on the claim that selection operates only on words of the same word class, we predicted that selection measures would show an opposite pattern as the semantic working memory measure – specifically, relating to grammatical properties but not content word elaboration.  Preliminary findings from 17 individuals have, for the most part, supported the predictions for the working memory measures.  However, the findings for selection measures are substantially less clear-cut.  I will discuss possible sources for the unexpected findings for selection and directions for future research to follow-up on both the working memory and selection findings.

Last checked 2017-09-28 by Zeshu Shao

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