Word Retrieval Following Mild Traumatic Brain Injury: Implications for Categorical Deficits

King, Kristin and Hough, Monica and Vos, Paul (2005) Word Retrieval Following Mild Traumatic Brain Injury: Implications for Categorical Deficits. [Clinical Aphasiology Paper]

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Abstract

Theories on the organization and structure of semantic knowledge have been developed relative to aphasic patients with defined lesions. Populations without defined lesions, such as mild TBI, also may be differentially affected relative to lexical access. This study investigated noun-verb dissociation following MTBI, using the Test of Adolescent-Adult Word Finding, examining accuracy and response time. Results indicated that the MTBI group was significantly slower and less accurate in naming nouns and verbs than normal controls. No difference was observed within groups. These results suggest that neuroanatomical theories related to noun-verb retrieval may not be as differentially explanatory as originally thought.

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