Plasticity in speech organization following commissurotomy.
Plasticity in speech organization following commissurotomy.
复制标题
连合切开术后言语组织的可塑性。
DOI：
10.1093/brain/102.4.805
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
Joseph E LeDoux
中科院分区：
文献类型：
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作者：
M. Gazzaniga;B. Volpe;C. Smylie;D. H. Wilson;Joseph E LeDoux
三年半来，我们一直在研究一个18岁的杰出男性的认知和意识机制：案例P.S.这个独特的个体为了控制难治性癫痫而将他的胼胝体分开。虽然在手术后的一段时间里，他看起来像其他裂脑患者一样，无法描述指向他沉默的右半球的语言刺激，但他表现得好像他能够理解指向该半球的广泛的语言相关刺激。通过用左手选择合适的字母来拼写，他可以处理名词、动词、押韵、反义词和上位概念。当被问到他的左视野是否有速示演示时，他要么说他什么也没看到，要么说他只看到了一道闪光。他也无法识别他左手的口头触觉“立体感”输入。去年，PS。已经开始谈论针对他右脑的刺激。这一系列的实验表明，这种言语不是视觉通道内的半球间传递。此外，绘制相对增加的语言描述的输入到右半球的熟练程度，这个言语系统似乎是在一个持续发展的过程中。
For three-and-a-half years we have been studying the cognitive and conscious mechanisms in a remarkable 18-year-old man: Case P.S. This unique individual had his corpus callosum divided in order to control intractable epilepsy. Although for some time after the operation he appeared like other split-brain patients, unable to describe verbally stimuli directed to his mute right hemisphere, he behaved as if he was capable of comprehending a wide range of language-related stimuli directed to that hemisphere. Spelling by choosing the appropriate letters with his left hand, he could process nouns, verbs, rhymes, antonyms, and superordinate concepts. When asked about tachistoscopic presentations delivered to his left visual field, he either said he had seen nothing, or only a flash of light. He was also unable to identify verbally tactile 'sterognostic' inputs to his left hand. In the last year P.S. has begun to speak about stimuli directed to his right hemisphere. This series of experiments suggests that this speech is not interhemispheric transfer within the visual modality. Further, plotting the relative increased proficiency of verbal description of inputs directed to the right hemisphere, this speech system seems to be in a process of continuing development.