التفاصيل البيبلوغرافية
| العنوان: |
Preserved repetition in thalamic afasia. A pathophysiological hypothesis |
| المؤلفون: |
Nitrini, Ricardo, Lucato, Leandro T., Sitta, Maria C., Oliveira, Maíra O., Andrade, Daniel Ciampi de, Silva, Valquiria A., Carneiro, Camila G., Buchpiguel, Carlos A. |
| المصدر: |
Dementia & Neuropsychologia. June 2019 13(2) |
| بيانات النشر: |
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento, 2019. |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
aphasia, thalamic aphasia, repetition, neuroimaging, subcortical aphasia |
| الوصف: |
The ability to repeat words is almost always preserved in thalamic aphasia. The pathophysiology of both thalamic aphasia and preservation of repetition are not fully understood. In a case of severe aphasia with preserved repetition after a left thalamic hemorrhage, MRI disclosed left thalamic lesion and loss of fractional anisotropy in the left centrum semiovale. FDG-PET showed severe hypometabolism in the left cerebral hemisphere, except for superior and transverse temporal gyri, calcarine fissure and frontopolar regions. Primary sensory function may be less functionally dependent on thalamic connections than heteromodal and paralimbic areas, which have connections with several thalamic nuclei. The extensive cortical hypometabolism due to diaschisis may have been responsible for the severity of the aphasia, whereas the less severe reduction of metabolism in the superior and transverse temporal gyri, and also, albeit less evident, in Broca’s area, might explain the preservation of repetition. |
| نوع الوثيقة: |
report |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
1980-5764 |
| DOI: |
10.1590/1980-57642018dn13-020015 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-57642019000200244 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S1980.57642019000200244 |
| قاعدة البيانات: |
SciELO |
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