Approaches to the Study of Aphasia

  • Ivar Reinvang
Part of the Applied Psycholinguistics and Communication Disorders book series (APCD)


The study of aphasia may be motivated by clinical as well as theoretical considerations. It has been estimated that about 1 million people suffer from aphasia in the United States (Sarno, 1980). In Sweden, the incidence of aphasia has been estimated at 60 per 100,000 inhabitants per year (Broman, Lindholm, & Melin, 1967), and in Norway, Petlund (1970) estimated the prevalence at.09%. The most frequent cause of aphasia is stroke, which is itself a common disease in an elderly population. Whereas the risk of stroke in the fifth decade of life is.2%, the corresponding risk in the seventh decade is 2.0% (Marquardsen, 1969). Add the fact that 20% to 25% of stroke patients are initially aphasic (Brust, Schafer, Richter, & Bruun, 1976), and the magnitude of the clinical problems becomes striking. In this context, the need for practical and reliable methods of testing is apparent. A classification system with knowledge of associated neurological and neuropsychological deficits, prognosis, and underlying pathology is a prerequisite for sound treatment.


Localization Theory Language Function Language Area Nonlocalization Theory Hemispheric Specialization 
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Copyright information

© Springer Science+Business Media New York 1985

Authors and Affiliations

  • Ivar Reinvang
    • 1
  1. 1.Sunnaas Hospital and Institute of PsychologyUniversity of OsloOsloNorway

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