| 清醒猴纹状皮层（V1）神经元与注视位置相关的活动 |
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| 引用本文： | 李朝义 郭昆. 清醒猴纹状皮层（V1）神经元与注视位置相关的活动[J]. 生理学报, 1997, 49(3): 299-306 |
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| 作者姓名： | 李朝义 郭昆 |
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| 作者单位： | 中国科学院上海生理研究所神经生物学开放实验室!上海，200031(李朝义)，中国科学院生物物理研究所视觉信息处理开放实验室!北京，100101(郭昆) |
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| 基金项目： | 国家攀登项目!“脑功能及其细胞和分子基础”基金，国家自然科学基金，中国科学院生物物理研究所视觉信息处理开放实验室和中国科学院上海 |
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| 摘 要： | 用单细胞记录方法，研究了不同眼注视位置对清醒猴初级视皮层（Ｖ１）神经元自发活动的影响。实验前训练两只猴注视一个小光点，并使注视点在屏幕上顺序移动２５个位置。我们观察到：（１）５２％的初级视皮层神经元发放频率受眼位置调制，存在着一个能引起细胞最大发放的“注射野”；当注视点位于该细胞的注射野内时，发放频率明显增强。（２）大多数神经元的注视野位于感受野的外侧，多数在对侧视野范围内。（３）受眼位置影响的神
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| 关 键 词： | 视觉 眼位置 注视 视皮层 纹状皮层 |
GAZE-POSITION-DEPENDENT ACTIVITIES OF STRIATE CORTEX (V1) NEURONES OF AWAKE MACAQUE MONKEYS |
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| LI CHAO-YI,GUO KUN. GAZE-POSITION-DEPENDENT ACTIVITIES OF STRIATE CORTEX (V1) NEURONES OF AWAKE MACAQUE MONKEYS[J]. Acta Physiologica Sinica, 1997, 49(3): 299-306 |
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| Authors: | LI CHAO-YI GUO KUN |
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| Abstract: | We recorded the activities of single neurons of the primary visual cortex inawake, behaving monkeys to test the influence of the position of gaze on cellular activity. Two monkeys (Macaca mulatta) were trained to fixate a small spot positioned sequentially at 25 locations on a viewing screen. About half (52% ) of the neurons recordedshowed a selective gaze field (GF), when monkey fixated at this field of view, the cellactivities increased significantly. For the majority of the neurons, GF located at thecontralateral field of view with respect to the hemisphere from which responses wererecorded. The GF was usually found a few degrees peripheral to the related RF. Gazeposition-dependent neurons were found at different depths of the cortex, but mostly inthe superficial and the deepest layers. The results indicate that the striate cortex neuronsmay code information about gaze position. |
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| Keywords: | monkey eye position fixation gaze field receptive field striate cortex |
| 本文献已被 CNKI 维普 等数据库收录！ |
