Traccis S, Rosati G, Patraskakis S, Bissakou M, Sau G F, Aiello I
Exp Neurol. 1987 Jan;95(1):76-84. doi: 10.1016/0014-4886(87)90008-2.
We studied the influence of the asymmetric tonic neck reflexes on the excitability of the human soleus motoneuronal pool by mapping the H amplitude as a function of rotation of the body relative to the fixed head. Eight normal adult volunteers were tested. On each subject 15 consecutive H reflexes were recorded from the right soleus muscle, for each of the following test position, 4 degrees, 8 degrees, 12 degrees, 16 degrees, as well as at the control position (0 degrees), both before and after each change in body position. Our results showed that the H reflex amplitude was progressively facilitated for contralateral rotation in respect to the recording side and conversely inhibited for ipsilateral rotation. The results indicate that neck receptors of one side enhance the excitability of the contralateral soleus motoneurons and depress the ipsilateral ones.
我们通过绘制H波幅随身体相对于固定头部的旋转角度的变化曲线，研究了非对称紧张性颈反射对人类比目鱼肌运动神经元池兴奋性的影响。测试了八名正常成年志愿者。在每个受试者身上，在身体位置每次改变之前和之后，针对以下每个测试位置（4度、8度、12度、16度）以及对照位置（0度），从右侧比目鱼肌连续记录15次H反射。我们的结果表明，相对于记录侧，对侧旋转时H反射波幅逐渐增强，而同侧旋转时则相反受到抑制。结果表明，一侧的颈部感受器增强对侧比目鱼肌运动神经元的兴奋性，而抑制同侧的运动神经元。
