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  • 1
    Publication Date: 2011-11-19
    Description: How rudimentary movements evolve into sophisticated ones during development remains unclear. It is often assumed that the primitive patterns of neural control are suppressed during development, replaced by entirely new patterns. Here we identified the basic patterns of lumbosacral motoneuron activity from multimuscle recordings in stepping neonates, toddlers, preschoolers, and adults. Surprisingly, we found that the two basic patterns of stepping neonates are retained through development, augmented by two new patterns first revealed in toddlers. Markedly similar patterns were observed also in the rat, cat, macaque, and guineafowl, consistent with the hypothesis that, despite substantial phylogenetic distances and morphological differences, locomotion in several animal species is built starting from common primitives, perhaps related to a common ancestral neural network.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dominici, Nadia -- Ivanenko, Yuri P -- Cappellini, Germana -- d'Avella, Andrea -- Mondi, Vito -- Cicchese, Marika -- Fabiano, Adele -- Silei, Tiziana -- Di Paolo, Ambrogio -- Giannini, Carlo -- Poppele, Richard E -- Lacquaniti, Francesco -- New York, N.Y. -- Science. 2011 Nov 18;334(6058):997-9. doi: 10.1126/science.1210617.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neuromotor Physiology, IRCCS Santa Lucia Foundation, Rome, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22096202" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Biological Evolution ; Biomechanical Phenomena ; Cats ; Child, Preschool ; Electromyography ; Humans ; Infant ; Infant, Newborn ; Leg/*physiology ; *Locomotion ; Macaca mulatta ; *Motor Activity ; Motor Neurons/*physiology ; Muscle, Skeletal/innervation/*physiology ; Nerve Net/physiology ; Rats ; Spinal Cord/physiology ; *Walking
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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