新生儿的运动原体及其发育过程
Nadia Dominici1, Yuri P Ivanenko, Germana Cappellini
1Laboratory of Neuromotor Physiology, IRCCS Santa Lucia Foundation, Rome, Italy.
概括
原始的运动随着发展而演变,保留原始的神经模式,而不是被取代. 这些基本的运动模式在各种物种中都存在,这表明它们具有共同的进化起源.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 比较生理学比较生理学
背景情况:
- 运动控制的发展轨迹从基本到复杂的运动还不太清楚.
- 现有的理论表明,原始的神经控制模式在发育过程中被替换,而不是保留.
研究的目的:
- 在不同发育阶段的运动过程中识别和描述 lumbosacral 运动神经元活动的基本模式.
- 研究各种动物物种中这些运动控制模式的进化保存.
主要方法:
- 在人类新生儿,幼儿,学龄前儿童和成年人中,进行了腰部神经元运动神经元活动的多肌肉记录.
- 在老鼠,猫,和鸟模型中进行了类似的记录.
主要成果:
- 在新生儿中发现的两个基本的运动神经元活动模式在整个人类发育过程中都存在.
- 在幼儿中出现了两个额外的模式,增强了新生儿模式.
- 在所有研究物种中观察到非常相似的运动控制模式,包括人类,动物,猫,灵长类动物和鸟类.
结论:
- 运动发育包括保留和增强原始的神经模式,而不是完全取代它们.
- 这些基本运动模式的跨物种的保存表明了运动的共同进化起源,可能与祖先的神经网络有关.
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