【摘要】 目的和方法 :采用玻璃微电极细胞外引导单位神经元放电的方法 ,观察电刺激兔腹中隔区 (VSA)时 ,视前区 -下丘脑前部 (POAH)温度敏感神经元放电频率的变化。结果 :电刺激腹中隔区可使视前区 -下丘脑前部热敏神经元放电频率增加 ,冷敏神经元放电频率减少。结论 :腹中隔区可能通过影响视前区 -下丘脑前部温敏神经元放电频率而参与体温调节更多还原

【Abstract】 AIM and METHODS: To investigate the effect of electrical stimulation of VSA on the firing of thermosensitive neurons in preoptic anterior hypothalamus (POAH), the firing rate of thermosensitive neurons in POAH of 20 New Zealand white rabbits was recorded by using extracellular microelectrode techinque. RESULTS: (1)Electrical stimulation of ventral septal area (VSA) caused a significant increase in firing rate of warm-sensitive neurons in the preoptic area of the anterior hypothalamus(POAH).(2) The firing rate of cold-sensitive neurons was decreased remarkably in the POAH by electrical stimulation of VSA. CONCLUSION: VSA may play a controlling role in the thermoregulation through altering the firing rate of thermosensitive neurons in the POAH .更多还原