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da shu xia qiu nao shi pang he shen jing yuan dui dian ci ji zhong nao zhong yang hui zhi nei ce qiu xi de fan ying
Pages: 210-215
Year: Issue:  2
Journal: Acta Physiologica Sinica

Keyword:  paraventricular nucleus of hypothalamuscentral graylemniscus medialisorthodromic responseantidromic response;
Abstract: The experiments were performed on 28 rats immobilized with Flaxedil. Unitdischarge of PVH neurons was recorded by glass microelectrode extracellularly.CG and LM in midbrain were stimulated with bipolar electrode respectively. The activity of neurons in the PVH and its responses to brain stimulation wereobserved. The main results are as follows: After CG stimulation, 4 units showedantidromic response, 47 units showed orthodromic responses with different types:Type 1 was responsive to single stimulus, while type Ⅱ was responsive only to atrain of stimuli. No response to LM stimulation was observed. These results suggest that there are two-way connections between PVH andCG,but no connection between PVH and LM could be demonstrated electro-physiologically.
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