摘要:

&NA;After a meningioma situated in the trigone of the left lateral ventricle was excised by the transcallosal approach of Kempe and Blaylock, a right‐handed musician with a right hemianopsia developed alexia without agraphia. In contrast to previously reported cases of this syndrome arising from other etiologies, he was unable to read single letters or numbers. Neuropsychological studies at 42 and 126 days after operation also disclosed an inability to associate auditory or tactile stimuli with visually perceived material, whereas speech and verbal comprehension were intact. Although the alexia extended to musical notes, he could interpret other musical symbols (e.g., treble clef). Appreciation of rhythm and expressive musical ability were relatively preserved, although judgment of other musical features (including discrimination of pitch, duration, and loudness) was compromised. The findings suggest that alexia may occur as a consequence of the transcallosal procedure when a right hemianopsia is present. However, other linguistic abilities may be better preserved by the transcallosal approach to the ventricle than by a transcortical operation.

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

摘要:

&NA;A case of ossification of the posterior spinal longitudinal ligament in association with anterior ankylosing hyperostosis is presented, with a review of the relevant literature. Improvement followed laminectomy. Evaluation of this entity by computerized tomography is demonstrated.

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

摘要:

&NA;A case of a hemangioendothelioma of the occipital bone that presented clinically as an acute epidural hematoma is reported. The literature regarding this rare bone tumor is reviewed. The treatment of choice seems to be wide surgical excision, but life‐threatening hemorrhage may occur due to extreme tumor vascularity. The role of radiotherapy remains uncertain.

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

摘要:

&NA;We report a newborn infant with a chondroma of the spine covered by a large lipoma. The child had no neurological deficit. Presenting as a tumor of the back, the chondroma was successfully excised. A review of the pertinent literature emphasizes the rarity of this lesion.

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

摘要:

&NA;This article reviews three points. Monkeys may be trained by operant conditioning to control the firing rate and pattern of single neurons in the precentral cortex. Recent data provide an explanation of how this control is mediated and an accounting of various factors that influence it. Using this technique to study cortical physiology, researchers have generated new insights into the pathophysiology and clinical effects of epilepsy.

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1979

数据来源: OVID