抑制型与易化型整合野细胞的感受野和整合野大小比较  

Comparison of Receptive Field Size and Integration Field Size between Inhibitory and Facilitative Two-type Spatial Integration Cells

作　　者：陈科[1] 宋雪梅[2] 

机构地区：[1]电子科技大学神经信息教育部重点实验室,四川成都610054 [2]中国科学院上海生命科学研究院生命中心,上海200031

出　　处：《航天医学与医学工程》2011年第5期372-374,共3页Space Medicine & Medical Engineering

基　　金：国家重点基础研究项目(2007CB311001);国家自然科学基金资助项目(90820301;60835005;60736029)

摘　　要：目的比较抑制型和易化型整合野细胞的感受野和整合野大小。方法利用细胞外记录方法,将运动的正弦光栅的中心与测试细胞的感受野中心对齐,然后测试细胞的遮盖曲线和面积整合曲线以确定其感受野与整合野大小。结果易化型整合野细胞的感受野大于抑制型整合野细胞的感受野,易化型整合野细胞的整合野亦大于抑制性整合野细胞的整合野。结论两类空间整合特性不同的细胞的感受野和整合野大小均有着显著的差异,这可能由于它们形态学的差异产生的。Objective To compare the size of receptive field and integration field between inhibitory integration field（I-IF） cells and facilitative integration（F-IF） cells.Methods The sizes of receptive filed and integration field including 35 F-IF and 83 I-IF cells in 17 cats were measured with extracellular recording.The receptive field sizes were measured with mask occlusion test and the integration field size were measured with spatial summation test.Results The size of receptive filed and integration field of F-IF cells were both larger than those of I-IF cells.Conclusion This result may be caused by the difference of their morphology.

关 键 词：经典感受野 整合野 抑制型整合野 易化型整合野 

分 类 号：Q424[生物学—神经生物学]