Pressman Ia M
Zh Vyssh Nerv Deiat Im I P Pavlova. 1978 Nov-Dec;28(6):1184-9.
Standard 5-member series of weak electro-cutaneous stimulations of the fore-paw were applied in chronic experiments to two dogs with implanted cortical electrodes. The stimuli caused no apparent motor reactions and were not reinforced by any other type of stimulation. Evoked potentials (EP) in the sensorimotor cortex were gradually forming in the course of experiments in such a way that the amplitude of averaged EPs to the extreme stimuli of the series became larger than those to the middle ones. The elaborated U-shaped dependence of the averaged EP amplitudes in the sensorimotor cortex on the ordinal number of the electrical stimuli correlates with the same EP dependence observed in the auditory cortex of dogs in response to series of clicks. The described form of EP organization in response to the stimuli of one modality facilitates the elaboration of the same type of organization in response to the stimuli of an other modality.
在慢性实验中，对两只植入了皮层电极的狗的前爪施加了标准的5次弱皮肤电刺激序列。这些刺激未引起明显的运动反应，也未通过任何其他类型的刺激进行强化。在实验过程中，感觉运动皮层中的诱发电位（EP）逐渐形成，使得该序列中最末端刺激的平均EP幅度大于中间刺激的平均EP幅度。感觉运动皮层中平均EP幅度对电刺激序数的精细U形依赖性与在狗的听觉皮层中观察到的对一系列滴答声的相同EP依赖性相关。所描述的对一种模态刺激的EP组织形式有助于对另一种模态刺激形成相同类型的组织。
