Isolation of a right hemisphere cognitive system in a patient with anarchic (alien) hand sign.
Isolation of a right hemisphere cognitive system in a patient with anarchic (alien) hand sign.
复制标题
具有无政府主义（外星人）手势的患者右半球认知系统的隔离。
DOI：
10.1016/s0028-3932(97)00019-5
复制
发表时间：
1997
期刊：
影响因子：
2.6
通讯作者：
Gazzaniga,MS
中科院分区：
文献类型：
--
作者：
Baynes,K;Tramo,MJ;Reeves,AG;Gazzaniga,MS
我们报告了一例女性慢性无政府手征患者右侧大脑半球孤立的概念性知识的证据，该患者的中央五分之四的穹隆体部发生了缺血性梗塞。右脑获得的视觉信息有限，对从属于记忆的内侧颞叶结构的访问受到干扰，与左半球语言结构的连接完全中断。尽管如此，右脑可以通过触觉输入建立物体的心理表征，并将其用于跨模式匹配。在听觉理解或命名任务中，这些表征并不是一致的。这种功能特异性及其病理解剖学相关性表明，对无政府手势的研究不仅可以阐明运动控制问题，还可以帮助我们理解概念知识的表征和侧化。爱思唯尔科学有限公司出版
We report evidence of isolated conceptual knowledge in the right hemisphere of a woman with chronic anarchic hand sign after ischemic infarction of the central four-fifths of the corpus callosum. Limited visual information was available to the right hemisphere, access to medial temporal structures subserving memory was disrupted and disconnection from left hemisphere language structures was complete. Still, the right hemisphere could build mental representations of objects via tactile input and use them in cross-modal matching. These representations were not accessed consistently in auditory comprehension or naming tasks. This functional specificity and its pathoanatomical correlates demonstrate that the study of anarchic hand sign can illuminate not just motor control issues but may inform our understanding of the representation and lateralization of conceptual knowledge as well. Published by Elsevier Science Ltd