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[Vol.21 No.1 contents]
Japanese/English
Full Text of this Articlein English PDF (146K) |
| ArticleTitle | What Can Acute Aphasia Tell Us About the Brain? |
| Language | E |
| AuthorList | Argye E. Hillis |
| Affiliation | Johns Hopkins University School of Medicine, Johns Hopkins University Department of Cognitive Sciense |
| Publication | Japanese Journal of Neuropsychology: 21 (1), 9-17, 2005 |
| Received | |
| Accepted | |
| Abstract | Much of what is known about brain/language relationships has been based on observed associations between chronic lesions in a particular area and deficits in particular language tasks. Although this methodology has provided enumerable valuable insights, it also has limitations. In this paper I illustrate some of the limitations of traditional lesion/deficit association studies. I then demonstrate advantages of new twist on lesion/deficit association studies that identifies associations between functionally inactive tissue and deficits in acute stroke that has allowed us to re-evaluate some well accepted hypotheses about brain/language relationships. In addition, I show how this new methodology has provided evidence for neural correlates of very specific cognitive functions underlying language. |
| Keywords | aphasia, stroke, magnetic resonance perfusion weighted imaging |
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