[第21巻第1号目次へ] Japanese/English

Full Text of this Article in English PDF (146K)

論文名	What Can Acute Aphasia Tell Us About the Brain?
論文言語	E
著者名	Argye E. Hillis
所属	Johns Hopkins University School of Medicine, Johns Hopkins University Department of Cognitive Sciense
発行	神経心理学：21（1），9─17，2005
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要旨	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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