Panizza M, Lelli S, Hallett M
Human Motor Control Section, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892.
Neurology. 1989 Jun;39(6):785-8. doi: 10.1212/wnl.39.6.785.
In 6 healthy volunteers, stimulation of the median nerve at the elbow elicited H-reflexes in muscles innervated by the ulnar nerve (flexor digitorum profundus of the 4th and 5th digits of the hand) as well as the median nerve (flexor carpi radialis). This finding offers direct physiologic evidence in humans of monosynaptic excitation from group Ia afferents to nonhomonymous muscles, a phenomenon for which only limited indirect evidence existed previously.
在6名健康志愿者中，刺激肘部的正中神经会在由尺神经（手部第4和第5指的指深屈肌）以及正中神经（桡侧腕屈肌）支配的肌肉中引出H反射。这一发现为人类中从Ia类传入纤维到非同源肌肉的单突触兴奋提供了直接的生理学证据，而这种现象此前仅有有限的间接证据。
