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Sample Annotated Bibliography Entry. King, A. K., Hough, M. S., Vos, P., Walker, M. M., & Givens, G. (2006). Word retrieval following mild TBI: Implications for categorical deficits. A phasiology, 20, 235-245. (purpose).
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King, A. K., Hough, M. S., Vos, P., Walker, M. M., & Givens, G. (2006). Word retrieval following mild TBI: Implications for categorical deficits. Aphasiology, 20, 235-245.
(purpose) • The purpose of this study was to measure response time and accuracy of noun and verb retrieval in patients with mild TBI. The authors hoped to shed light on how lexical processing takes place in brains with diffuse injury as opposed to brains with defined lesions.
(method) • The researchers tested two groups of 10, one group with no brain injury, and one with mild TBI. The groups were matched for age, gender, and education. The Test of Adolescent/ Adult Word Finding was used to measure picture naming for nouns, sentence completion, description naming, picture naming for verbs, and category naming. Participants were measured according to accuracy and response time.
(results) • Regarding accuracy, the NBD group was significantly more accurate in naming nouns. The researchers found no significant difference in verb naming. However, the researchers found the NBD group faster on all tasks. They also found a significant difference within the MTBI group for naming living versus non-living things.
(discussion) • The varied results of this study reinforce previous studies which have found a complex and distributed network for processing nouns and verbs. The authors noted that more research is necessary to fully understand the multiple levels of difficulty in word retrieval characteristic of brain injured patients.