Qualitative analyses of verbal fluency performance in persons with right hemisphere damage

Krishnan, Gopee and Karanth, Prathibha (2013) Qualitative analyses of verbal fluency performance in persons with right hemisphere damage. [Clinical Aphasiology Paper]

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Abstract

In the context of ongoing debates on the arguable role of right hemisphere in lexico-semantic processing, we investigated the clustering, switching, and time-course of lexical retrieval in right hemisphere damage (PwRHD). “Clustering refers to the production of words within the semantic or phonemic subcategories and switching refers to the ability to shift between the clusters” (Troyer, Moscovitch, & Winocur, 1997, p. 140). Time course analysis permits variation in retrieval process with passage of time. Previously, Beausoleil, Fortin, Le Blanc, and Joanette (2003) investigated the time course of lexical retrieval in people with RHD and reported that their participants retrieved maximum words at the beginning of the trial, a pattern similar to that exhibited by people with left hemisphere damage and non-brain damaged groups of their study. However, the clustering and switching remain to be investigated in people with right hemisphere damage.

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