Verbal Fluency in Aphasia and Right Hemisphere Brain Damage: The Effects of Dual-Task Conditions

Murray, Laura and Mayer, Jamie and Kean, Jacob and Rey, Olga and Ikuta, Toshikazu (2005) Verbal Fluency in Aphasia and Right Hemisphere Brain Damage: The Effects of Dual-Task Conditions. [Clinical Aphasiology Paper]

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Abstract

Adults with aphasia, right hemisphere damage or no brain damage completed a verbal fluency task alone and in competition with a tone discrimination task. The study’s purpose was to specify further resource models of aphasia by examining whether (a) material-specific resource limitations (i.e., verbal fluency in isolation, naming test scores), general cognitive abilities (i.e., attention, working memory, nonverbal fluency test scores), or both are important predictors of dual-task outcomes, and (b) dual-task conditions evoke qualitative changes in naming strategy (i.e., error types; semantic cluster use). Findings relate to the strength and nature of interactions between language and cognition in normal and patient populations.

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