Electrophysiological evidence of collateral projections of parabrachio-thalamic relay neurons
Electrophysiological evidence of collateral projections of parabrachio-thalamic relay neurons
复制标题
臂旁丘脑中继神经元侧枝投射的电生理学证据
DOI：
10.1016/0304-3940(87)90222-9
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发表时间：
1987
影响因子：
2.5
通讯作者：
H. Ogawa
中科院分区：
文献类型：
--
作者：
T. Hayama;H. Ogawa
我们研究了14个臂旁核神经元的轴突分支，从3个刺激部位中的2个，即同侧和对侧丘脑味觉区（TTAs）和同侧杏仁中央核（CA）逆向激活。利用2个刺激点的逆向潜伏期、碰撞时间和不应期，计算轴突分支点到刺激点或索马记录点的距离的传导时间。这14个神经元中的9个具有显著长度的轴突分支，终止于3个刺激位点中的2个。5个神经元发出轴突分支至双侧TTA，3个神经元同时发出轴突分支至CA和同侧TTA，1个神经元同时发出轴突分支至CA和对侧TTA。这9个神经元中有4个对味觉刺激有反应。
We studied axonal branching of 14 parabrachial nucleus neurons, activated antidromically from 2 of the 3 stimulation sites, i.e. the ipsi- and contralateral thalamic taste area (TTAs) and the ipsilateral central nucleus of the amygdala (CA). Making use of antidromic latencies, collision times and refractory periods at the 2 sites of stimulation, the conduction times were calculated for the distance between the branching point of the axon and the stimulation sites or the recording site at the soma. Nine of these 14 neurons had a significant length of axon branches terminating at 2 of the 3 sites of stimulation. Five neurons sent axon branches to the bilateral TTAs, 3 to both the CA and the ipsilateral TTA and the remaining one to both the CA and the contralateral TTA. Four of these 9 neurons with collateral branches responded to taste stimulation.