Dzhangirov P L
Zh Evol Biokhim Fiziol. 1978 Nov-Dec;14(6):603-6.
In acute experiments on rabbits under chloralose-nembutal anaesthesia, studies have been made on the distribution and the pattern of the evoked potentials (EP) in neocortical structures of the brain cortex during electrical stimulation of different hypothalamic nuclei. It was found that during stimulation of the supramammilar area of the hypothalamus, the focus of maximum activity of cortical responses of the negative-positive configuration is localised in the median parts of precentral agranular region. During stimulation of the posterior hypothalamic area, the EP were of the positive-negative-positive type. Registration of the EP in different cortical layers during stimulation of the posterior hypothlamic nuclei showed that from 100 to 100 micrograms the amplitude of EP components decreases, whereas at the level of 600 mu the inversion of the EP takes place. At the depth of 1.800 mu the EP elicited by stimulation of the posterior hypothalamus had a form of a positive oscillation with a long latent period. It is concluded that the posterior hypothalamic nuclei have a vast representation in rabbit neocortex, this representation being realized by both polysynaptic and olygosynaptic systems of connections.
在水合氯醛-戊巴比妥麻醉下对家兔进行的急性实验中，研究了在电刺激不同下丘脑核时大脑皮质新皮质结构中诱发电位（EP）的分布和模式。结果发现，刺激下丘脑乳头体上区时，正负构型皮质反应的最大活动焦点位于中央前颗粒前区的中部。刺激下丘脑后区时，EP为正负正型。刺激下丘脑后核时在不同皮质层记录EP表明，从100到100微克，EP成分的振幅减小，而在600微米水平时EP发生反转。在1800微米深度处，刺激下丘脑后部所诱发的EP呈潜伏期长的正性振荡形式。得出的结论是，下丘脑后核在兔新皮质中有广泛的代表，这种代表通过多突触和少突触连接系统实现。
