Neuropsychological Studies on Partial Split-Brain Patients in Japan
Although neurological syndromes due to callosal disconnection such as buccofacial apraxia or pure alexia are fairly common, patients with primary lesions of the corpus callosum are not so frequently encountered in routine neurological examinations. However, careful attention to possible callosal damage in various neurological disorders can enable the practitioner to see a number of patients with primary callosal pathology, and detailed neuropsychological and neurological studies upon these patients can provide much valuable information with regard to the functional topography of the corpus callosum that is not readily available in studies of total callosal section for epilepsy (Iwata, 1979, 1980). In the present chapter we describe our studies upon partial lesions of the corpus callosum from various causes and discuss the functional topography of callosal transfer between the two cerebral hemispheres.
KeywordsDepression Neurol Kato Teratoma Fist
Unable to display preview. Download preview PDF.
- Abe, T., Kato, Y., Sekinao, H., Nakamura, N., and Konno, Y., 1976, A case of ice-pick brain injury without neurological sequels (abstract), Clin. Neurol. (Tokyo) 16: 278.Google Scholar
- Brion, S., and Jedynak, C. P., 1975, Les troubles du transfert interhémisphérique, Masson, Paris.Google Scholar
- Geschwind, N., 1965, Disconnexion syndromes in animals and man, Brain 88: 237–294, 585–644.Google Scholar
- Iwata, M., 1974, Interhemispheric association disturbances due to lesions of the corpus callosum (callosal disconnexion syndrome), Brain Nerve 26: 161–170, 291–303.Google Scholar
- Iwata, M., 1980, Functional localization within the corpus callosum in man, Adv. Neurol. Sci. 24: 1089–1098.Google Scholar
- Iwata, M., 1981, Callosal apraxia. Clin. Psychiatry 23: 991–999.Google Scholar
- Iwata, M., Sugishita, M., and Toyokura, Y., 1973, Visual-speech disconnexion syndrome of the right visual cortex after the transection of the splenium of the corpus callosum, Clin. Neurol. (Tokyo) 13: 308–316.Google Scholar
- Iwata, M., Sughishita, M., Kawai, M., Yamashita, N., and Toyokura, Y., 1979, Agraphia and kinesthetic alexia. Disturbances of visual language function due to the left angular gyrus lesion, Clin. Neurol. (Tokyo) 19: 462–468.Google Scholar