Abstract:
:Lateralization of speech dominance was established using amobarbital for 22 patients with vascular malformations lateralized to the left cerebral hemisphere. Patients' histories were negative for clinically evident neurological events (e.g., seizures or hemorrhage) prior to adulthood. The vascular lesions were categorized as high flow arteriovenous malformations (AVMs) (n = 4), low flow AVMs (n = 6), cavernous hemangiomas (n = 10), or venous angiomas (n = 2) by reviewing angiographic findings and surgical pathology for those patients whose lesions were excised. Three of the malformations encroached upon primary language areas. The frequency of right hemisphere speech dominance was not significantly elevated in comparison with the normal population, even though the incidence of nonright-handedness was. Ninety-five percent of the patients were left hemisphere dominant for speech: only one patient, with a parietal lobe cavernous hemangioma, was found to be right hemisphere dominant for speech. This malformation did not involve the primary language areas. These findings suggest that vascular malformations do not affect speech dominance as readily as other neurological diseases, but frequently affect manual dominance.
journal_name
J Clin Exp Neuropsycholjournal_title
Journal of clinical and experimental neuropsychologyauthors
Sass KJ,Buchanan CP,Westerveld M,Spencer DDdoi
10.1080/01688639408402690subject
Has Abstractpub_date
1994-10-01 00:00:00pages
769-76issue
5eissn
1380-3395issn
1744-411Xjournal_volume
16pub_type
杂志文章abstract::We examined the prevalence and correlates of anomalous motor speed asymmetry in 104 right-handed patients with a diagnosis of probable Alzheimer's disease (AD). On the Halstead-Reitan Finger Tapping Test, over 60% of the AD patients exhibited notable departures from expected finger tapping asymmetry; 26% displayed an ...
journal_title:Journal of clinical and experimental neuropsychology
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journal_title:Journal of clinical and experimental neuropsychology
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pub_type: 临床试验,杂志文章
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