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- Title
Voxel-based lesion-symptom mapping.
- Authors
Bates, Elizabeth; Wilson, Stephen M.; Saygin, Ayse Pinar; Dick, Frederic; Sereno, Martin I.; Knight, Robert T.; Dronkers, Nina F.
- Abstract
For more than a century, lesion-symptom mapping studies have yielded valuable insights into the relationships between brain and behavior, but newer imaging techniques have surpassed lesion analysis in examining functional networks. Here we used a new method-voxel-based lesion-symptom mapping (VLSM)-to analyze the relationship between tissue damage and behavior on a voxel-by-voxel basis, as in functional neuroimaging. We applied VLSM to measures of speech fluency and language comprehension in 101 left-hemisphere-damaged aphasic patients: the VLSM maps for these measures confirm the anticipated contrast between anterior and posterior areas, and they also indicate that interacting regions facilitate fluency and auditory comprehension, in agreement with findings from modern brain imaging.
- Subjects
PRECANCEROUS conditions; TISSUES; POSITRON emission tomography; MAGNETIC resonance imaging; DISEASES
- Publication
Nature Neuroscience, 2003, Vol 6, Issue 5, p448
- ISSN
1097-6256
- Publication type
Article
- DOI
10.1038/nn1050