Marlinskiĭ V V, Tsintsabadze F I
Neirofiziologiia. 1987;19(4):534-41.
Influence of the adequate vestibular stimulation by tilting about the longitudinal axis on the locomotor activity of forelimb muscles was investigated in precollicularly decerebrated guinea pigs. The locomotor activity was evoked by electrical stimulation of the mesencephalic locomotor region. An increase of the extensor activity in the stance phase and a decrease of the flexor activity in the swing phase on the limb ipsilateral to the tilt and opposite changes of the antagonist muscles activity on the limb contralateral to the tilt were observed during animal movements. It is found that during the sinusoidal tilting in the frequency range of 0.02-0.4 Hz changes in the locomotor activity lead the animal displacement: 60-40--in extensors, 40-20 degrees--in flexors. Mechanisms of the vestibular control of the locomotor activity are discussed.
研究了在中脑前脑去大脑豚鼠中，围绕纵轴倾斜给予适当前庭刺激对前肢肌肉运动活动的影响。运动活动由电刺激中脑运动区诱发。在动物运动过程中，观察到倾斜同侧肢体在站立期伸肌活动增加，摆动期屈肌活动减少，而倾斜对侧肢体的拮抗肌活动则发生相反变化。研究发现，在0.02 - 0.4 Hz频率范围内的正弦倾斜过程中，运动活动的变化领先于动物位移：伸肌为60 - 40度，屈肌为40 - 20度。文中讨论了前庭对运动活动控制的机制。
