Poliakova A G
Zh Vyssh Nerv Deiat Im I P Pavlova. 1982 Mar-Apr;32(2):300-9.
In experiments carried out on cats anaesthetized with Nembutal evoked potentials were recorded in the thalamic mediodorsal (MD) nucleus and in the projection and motor cortical areas with local cooling of the latter and the use of either single or paired stimuli of the same or different modalities. Visual and somatic excitatory inflows to the MD have been established, involving signals of specific and reticular genesis. Coming by separate ways they form isolated populations of neurones in the MD. A facilitating modulating influence of MD has been defined on the realization of afferent bursts produced in the motor cortex by visual and, particularly, somatic stimuli. It was found that in spite of its polyfunctionality, the motor cortex specifically influences heterogeneous inflows to the MD, exerting a more intensive and different action on the somatic afferentation as compared with the visual one. It is assumed that the specific and direct influence of the motor cortex on these impulses is exercised due to a functional subdivision of its corticofugal pathway into separate subsystems.
在用戊巴比妥麻醉的猫身上进行的实验中，通过局部冷却丘脑背内侧（MD）核以及投射和运动皮层区域，并使用相同或不同模式的单刺激或配对刺激，记录了诱发电位。已经确定了视觉和躯体兴奋性传入MD的通路，涉及特定和网状起源的信号。它们通过不同的途径到达MD，在MD中形成孤立的神经元群体。已经确定MD对视觉和特别是躯体刺激在运动皮层产生的传入冲动的实现具有促进调节作用。研究发现，尽管运动皮层具有多功能性，但它对传入MD的异质信息流具有特异性影响，与视觉传入相比，对躯体传入的作用更强且不同。据推测，运动皮层对这些冲动的特异性和直接影响是由于其皮质离心通路在功能上细分为不同的子系统而实现的。
