The effect of microinjection of the TRH into nucleus cuneiformis (NCF) on the evoked discharges of pain excitation neurons (PEN) in nucleus raphe magnus (NRM) was observed to investigate the relation between the effect of TRH and opioid.

• 用玻璃微电极记录大鼠中缝大核（NRM）内痛兴奋性神经元（PEN）的单位放电，观察楔状核（NCF）注入微量促甲状腺激素释放激素（TRH）对PEN痛诱发放电频率的影响，并初步探讨TRH与阿片肽之间的关系。