LOCALIZATION AND ANATOMICAL IDENTIFICATION OF THETA AND COMPLEX SPIKE CELLS IN DORSAL HIPPOCAMPAL FORMATION OF RATS
LOCALIZATION AND ANATOMICAL IDENTIFICATION OF THETA AND COMPLEX SPIKE CELLS IN DORSAL HIPPOCAMPAL FORMATION OF RATS
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DOI：
10.1016/0014-4886(75)90213-7
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发表时间：
1975-01-01
影响因子：
5.3
通讯作者：
RANCK, JB
中科院分区：
文献类型：
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作者：
FOX, SE;RANCK, JB
将微电极穿过不受约束的大鼠的背侧海马结构，每个35.3 μm记录至少5min。在每个部位记录动作电位尖峰的幅度和持续时间、放电频率、与慢波θ节律的关系以及复杂尖峰或θ细胞的存在。共记录到1014个神经元。(When同时从许多神经元记录，神经元的“数量”以任意和近似的方式“计数”。在949个振幅大于80 μV的非θ细胞中，只有一个不在齿筋膜门或与锥体层和颗粒层重叠的细胞层中。这些是投射细胞（锥体细胞和颗粒细胞）的细胞体的位置。然而，这一层比地层厚达400 μm。Theta细胞分布于投射细胞胞体部位、CA 1起始层、CA 3锥体上层和齿状筋膜门背侧部。在这些位置发生的频率对应于中间神经元的细胞体的分布。我们的结论是，投射细胞类和非θ细胞类有很大的重叠，而中间神经元类和θ细胞类有很大的重叠。
Microelectrodes were passed through the dorsal hippocampal formation of unrestrained rats, recording for at least 5 min each 35.3 μm. At each site the amplitude and duration of action potential spikes, frequency of firing, relation to slow wave theta rhythm, and presence of complex spikes or theta cells was recorded. One thousand and fourteen neurons were recorded from. (When recording from many neurons simultaneously, the “number” of the neurons was “counted” in an arbitrary and approximate way.) Of 949 nontheta cells greater than 80 μV amplitude, only one was not in the hilus of fascia dentata or in a layer of cells which overlapped stratum pyramidale and stratum granulosum. These are the locations of the cell bodies of projection cells (pyramidal cells and granule cells). However, this layer is, up to 400 μm thicker than stratum pyramidale. Theta cells were seen in sites of cell bodies of projection cells and also in stratum oriens of CA1, suprapyramidal layers of CA3, and dorsal part of the hilus of fascia dentata. The frequency of occurrence in these locations corresponded to the distribution of cell bodies of interneurons. We conclude that the class of projection cells and the class of nontheta cells have a very large overlap, and that the class of interneurons and the class of theta cells have a very large overlap.