A long-term follow-up case study of crossed aphasia assessed by single-photon emission tomography (SPECT), language, and neuropsychological testing

A 65-year-old man with well-defined crossed aphasia secondary to right cerebral infarction 10 years previously was studied for current language and cognitive abilities and regional cerebral blood flow (rCBF) during cognitive activation measured by single-photon emission tomography (SPECT). Reversed...

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Bibliographic Details
Published in:Brain and language 1988-03, Vol.33 (2), p.311-322
Main Authors: Walker-Batson, Delaina, Wendt, John S., Devous, Michael D., Barton, Mary M., Bonte, Frederick J.
Format: Article
Language:English
Subjects:
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Aphasia - diagnostic imaging
Aphasia - physiopathology
Behavioral psychophysiology
Biological and medical sciences
Cerebrovascular Circulation
Cognition - physiology
Frontal Lobe - blood supply
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Humans
Language
Mathematics
Occipital Lobe - blood supply
Parietal Lobe - blood supply
Phonetics
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Tomography, Emission-Computed
Tomography, X-Ray Computed
Wechsler Scales
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Summary:A 65-year-old man with well-defined crossed aphasia secondary to right cerebral infarction 10 years previously was studied for current language and cognitive abilities and regional cerebral blood flow (rCBF) during cognitive activation measured by single-photon emission tomography (SPECT). Reversed hemispheric lateralization was demonstrated by qualitative aspects of the patient's constructional deficits, dominant parietal lobe signs, and absence of the neglect syndrome. Language activation procedures during SPECT produced focal increases in rCBF to both frontal lobes with a phoneme detection task and to right temporal and parietal lobes with a math task. The authors stress the complexities of assessing brain/language mechanisms in vivo and demonstrate variabilities in rCBF during language activation dependent on task selection.
ISSN:0093-934X
1090-2155
DOI:10.1016/0093-934X(88)90071-5