Vecchierini-Blineau M F, Guihneuc P
J Neurol Neurosurg Psychiatry. 1982 Jun;45(6):531-8. doi: 10.1136/jnnp.45.6.531.
An electromyographic study of reflex responses elicited by stimulation of an area of skin in the lower limb was undertaken in awake or sleeping children from 3 days to 3 years of age. Recordings were made on the tibialis anterior and the short head of the femoral biceps. In the awake child, electrical stimulation of the cutaneous area around the toes evoked polysynaptic discharges (R II and R III) in both muscles. From birth to one year of age, the threshold for the tibialis anterior was much lower than for the short head of biceps, and the flexion reflex pattern predominated. After 20 months of age, the recruitment pattern for polysynaptic responses was different: the threshold for tibialis anterior increased and became higher than for the short head of biceps, as in the adult. In sleeping children, the most striking feature was the depression of R II responses. In non-REM sleep, R III responses also were depressed, with a similar threshold in both muscles, and even disappeared during deep sleep. In REM sleep, R III responses were present in babies, but seemed to be abolished in older children.
对3天至3岁的清醒或睡眠儿童进行了一项肌电图研究，该研究通过刺激下肢皮肤区域来引发反射反应。记录取自胫骨前肌和股二头肌短头。在清醒儿童中，对脚趾周围皮肤区域进行电刺激会在两块肌肉中诱发多突触放电（R II和R III）。从出生到1岁，胫骨前肌的阈值远低于二头肌短头，且屈曲反射模式占主导。20个月大之后，多突触反应的募集模式有所不同：胫骨前肌的阈值升高并高于二头肌短头，与成年人情况相同。在睡眠儿童中，最显著的特征是R II反应减弱。在非快速眼动睡眠中，R III反应也减弱，两块肌肉的阈值相似，在深度睡眠时甚至消失。在快速眼动睡眠中，婴儿存在R III反应，但在大龄儿童中似乎消失了。
