Yates B J, Kasper J, Brink E E, Wilson V J
Rockefeller University, New York, NY 10021.
Brain Res. 1988 May 24;449(1-2):377-80. doi: 10.1016/0006-8993(88)91058-x.
We studied, in decerebrate cats, peripheral input from the ipsilateral hindlimb to L4 neurons whose activity was modulated by neck rotation ('neck-modulated neurons'). Most neurons received convergent input from muscle, cutaneous and mixed nerves. In about half the neurons muscle input consisted of short-latency group I or group II excitation or inhibition, with group II effects far more frequent. Such synaptic actions were produced almost entirely by stimulation of quadriceps or sartorius. In the other neurons muscle afferents produced only late, diffuse excitation or inhibition, with thresholds usually in the group III range.
我们在去大脑猫中研究了来自同侧后肢的外周输入对L4神经元的影响，这些L4神经元的活动受颈部旋转调制（“颈部调制神经元”）。大多数神经元接受来自肌肉、皮肤和混合神经的汇聚输入。在大约一半的神经元中，肌肉输入包括短潜伏期的I类或II类兴奋或抑制，其中II类效应更为常见。这种突触作用几乎完全由股四头肌或缝匠肌的刺激产生。在其他神经元中，肌肉传入仅产生晚期、弥漫性的兴奋或抑制，阈值通常在III类范围内。
