EEG LEARNING CORRELATES USING SCALP AND INTRACRANIAL DEPTH ELECTRODES
EEG LEARNING CORRELATES USING SCALP AND INTRACRANIAL DEPTH ELECTRODES
批准号:
4696781
负责人:
R JOHNSON
金额:
$0.0万
依托单位国家:
美国
项目类别:
财政年份:
--
资助国家:
美国
项目状态:
未结题
起止时间:
至
中文摘要
信息处理通过平均诱发的方式进行监控和量化
回应技巧。从左至右记录脑电活动。
正常受试者记忆和感知过程中的右脑区域,
单侧颞叶切除术的患者,以及
神经精神障碍。脑电活动障碍
精神疾病患者的脑-行为关系也被评估,
左脑功能障碍与概念障碍和右脑的关系
不适应情绪反应的活动。
在颞叶切除术患者中,P300波幅与之相反
与刺激概率成正比,与正常情况相同
对照组,并在反应时诱发更大的P300。对于视觉效果
资料:右侧颞叶患者额部表现为较小的P300
而不是左额叶或正常个体。此外,没有任何
区分左侧或右侧的一致半球不对称
颞叶患者,或来自正常受试者的任一组。这些数据
不考虑这样的假设,即内侧时间结构,包括
海马体,作为P300的唯一发生器。更具体地说,是数据
这表明听觉和视觉刺激的处理依赖于
在很大程度上取决于材料的性质和左与左的完整性
右脑机制。
英文摘要
Information processing was monitored and quantified by averaged evoked
response techniques. The elecrographic activity was recorded from left and
right brain regions during memory and perception in normal subjects,
patients with unilateral temporal lobectomy, and patients with
neuropsychiatric disorders. Electroencephalographic disturbances in
brain-behavior relations in psychiatric patients were also evaluated,
relating left brain dysfunction to ideational disorders, and right brain
activity to maladaptive emotional reactions.
In temporal lobectomy patients, P300 amplitude was found to be inversely
proportional to stimulus probability in the same way as for normal
controls, and larger P300s were elicited in reaction time. For visual
material, right temporal patients manifested smaller P300s at frontal sites
than either left temporal or normal individuals. Moreover, there were no
consisent hemispheric asymmetries which distinguished the left or right
temporal patients, or either group from normal subjects. These data
discount the hypothesis that medial temporal structures, including the
hippocampus, serve as a sole generator of P300. More specifically the data
indicate that processing of auditory and visual stimuli is dependent to a
great extent on the character of the material and the integrity of left and
right brain mechanisms.
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会议论文
EVENT-RELATED POTENTIAL STUDIES OF NORMAL AND ABNORMAL COGNITIVE PROCESSING
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批准号:3782384
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项目类别:
-
资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:
EVENT-RELATED POTENTIAL STUDIES OF NORMAL AND ABNORMAL COGNITIVE PROCESSING
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批准号:3860876
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项目类别:
-
资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:
EEG LEARNING CORRELATES USING SCALP AND INTRACRANIAL DEPTH ELECTRODES
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批准号:3922455
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项目类别:
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资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:
EVENT-RELATED POTENTIAL STUDIES OF NORMAL AND ABNORMAL COGNITIVE PROCESSING
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批准号:3881820
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项目类别:
-
资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:
EEG LEARNING CORRELATES USING SCALP AND INTRACRANIAL DEPTH ELECTRODES
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批准号:3968883
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项目类别:
-
资助金额:$0.0万
-
财政年份:--
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负责人:R JOHNSON
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依托单位:
EVENT-RELATED POTENTIAL STUDIES OF NORMAL AND ABNORMAL COGNITIVE PROCESSING
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批准号:3846267
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项目类别:
-
资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:
XENOGENEIC IMMUNE RECONSTITUTION IN SIV INFECTION
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批准号:5206008
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项目类别:
-
资助金额:$0.0万
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财政年份:--
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负责人:R JOHNSON
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依托单位:--
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