Baev K V
Neirofiziologiia. 1981;13(2):196-203.
Segmental reflex responses of the lumbosacral spinal cord to peripheral afferent stimulation were investigated in immobilized decerebrated cats before and after d-tubocurarine or bicuculline application to the upper cervical segments and during fictitious scratching evoked by mechanical stimulation of the pinna. Application of these drugs led to a decrease of N1 component of the cord dorsum potential, dorsal root potential and polysynaptic responses in efferent nerves. The appearance of fictitious scratching was accompanied by additional tonic inhibition of these reactions and against its background the modulation of amplitudes of segmental reactions depending on the fictitious scratching phase was observed. Modulation of monosynaptic reflexes was also observed during fictitious scratching. Mechanisms and physiological significance of retuning of segmental reflex responses during activation of a spinal scratching generator are discussed on the basis of the data obtained.
在对固定的去大脑猫进行研究时，观察了腰荐脊髓对周围传入刺激的节段性反射反应，观察时间点包括在向颈上段应用d -筒箭毒碱或荷包牡丹碱之前和之后，以及在耳廓机械刺激诱发假搔抓期间。应用这些药物导致脊髓背电位的N1成分、背根电位和传出神经中的多突触反应降低。假搔抓的出现伴随着对这些反应的额外强直抑制，并且在此背景下，观察到节段性反应的幅度根据假搔抓阶段而调制。在假搔抓期间也观察到单突触反射的调制。基于所获得的数据，讨论了脊髓搔抓发生器激活期间节段性反射反应重新调整的机制和生理意义。
