A chronic unit study of the sensory properties of neurons in the forelimb areas of rat sensorimotor cortex
A chronic unit study of the sensory properties of neurons in the forelimb areas of rat sensorimotor cortex
复制标题
大鼠感觉运动皮层前肢区域神经元感觉特性的长期单元研究
DOI：
10.1016/0006-8993(86)90684-0
复制
发表时间：
1986
期刊：
影响因子：
2.9
通讯作者：
E. Neafsey
中科院分区：
文献类型：
--
作者：
C. Sievert;E. Neafsey
采用细胞外单单位记录技术，在清醒、头部受限的大鼠上，研究了大鼠感觉运动皮层几个前肢区神经元的感觉特性。在关节操作和刷洗和敲击四肢、面部和躯干期间，测试具有外周感受野的细胞的感觉输入的量和形式。输入输出相关性的基础上的感受野映射和皮层内微刺激在同一电极穿透的结果。结果发现，在前肢吻侧区的神经元（n=117）几乎没有接收到感觉输入，而在前肢尾侧初级运动区的神经元（n=114）的30%接受这样的输入。前肢尾侧运动区神经元的输入主要（83%）来自单个关节;沿着垂直电极穿透，当微刺激沿着沿着相同的电极穿透传递时，激活皮层细胞的相同关节也移动。在颗粒和dysgranular区的躯体感觉前肢皮层，70%的神经元（n=82）响应外周感觉输入，与大多数的细胞在颗粒皮层皮肤的输入，而细胞在dysgranular皮层更响应于深输入。缺乏感觉输入的喙前肢运动区是一致的建议，该地区可能是一个补充运动区的一部分，大鼠。
The sensory properties of neurons in the several forelimb areas of rat sensorimotor cortex were examined using the technique of extracellular single-unit recording in the awake, head-restrained rat. Cells with peripheral receptive fields were tested for the amount and modality of sensory input during joint manipulation and brushing and tapping of limbs, face and trunk. Input-output correlations were made on the basis of the results of receptive field mapping and intracortical microstimulation in the same electrode penetration. It was found that neurons (n=117) in the rostral forelimb area receive virtually no sensory input while 30% of neurons (n=114) in the caudal forelimb primary motor area do receive such input. The inputs to caudal forelimb motor area neurons were primarily (83%) from single joints; along perpendicular electrode penetrations the same joint that activated a cortical cell also moved when microstimulation was delivered along the same electrode penetration. In the granular and dysgranular zones of somatic sensory forelimb cortex, 70% of neurons (n=82) were responsive to peripheral sensory inputs, with most of the cells in the granular cortex responsive to cutaneous inputs while cells in the dysgranular cortex were more responsive to deep inputs. The lack of sensory inputs to the rostral forelimb motor area is consistent with the proposal that this region may be a part of the supplementary motor area of the rat.
灵长类动物 4 区手的两种表现形式。
影响因子：
2.5
作者：
Strick,PL;Preston,JB
通讯作者：
Preston,JB
灵长类动物 4 区手的两种表现形式。
影响因子：
2.5
作者：
Strick,PL;Preston,JB
通讯作者：
Preston,JB