Activity in preserved left hemisphere regions predicts anomia severity in aphasia
Abstract
Understanding the neural mechanism that supports preserved language processing in aphasia has implications for both basic and applied science. This study examined brain activation associated with correct picture naming in 15 patients with aphasia. We contrasted each patient's activation to the activation observed in a neurologically healthy control group, allowing us to identify regions with unusual activity patterns. The results revealed that increased activation in preserved left hemisphere areas is associated with better naming performance in aphasia. This relationship was linear in nature; progressively less cortical activation was associated with greater severity of anomia. These findings are consistent with others who suggests that residual language function following stroke relies on preserved cortical areas in the left hemisphere.
Department
Communication Sciences and Disorders
Publication Date
1-1-2010
Journal Title
Cerebral Cortex
Publisher
Oxford University Press
Digital Object Identifier (DOI)
10.1093/cercor/bhp160
Document Type
Article
Recommended Citation
Fridriksson, J., Bonilha, L., Baker, J.M., Moser, D., & Rorden, C. (2009). Activity in preserved left hemisphere regions predicts anomia severity in aphasia. Cerebral Cortex, 20(5), 1013-1019. [PMID: 19687294].
Rights
Copyright © 2010, Oxford University Press