Control of species-dependent cortico-motoneuronal connections underlying manual dexterity
نویسندگان
چکیده
منابع مشابه
Cortico-motoneuronal system and dexterous finger movements.
Cortico-motoneuronal system and dexterous finger movements To the Editor: A recent paper in the Journal of Neurophys-iology by Sasaki et al. (2004) reports that in macaque monkeys, skilled movements of the digits can survive a large unilateral lesion of the lateral corticospinal tract (LSCT) at the C 5 level. This important report forces us to reconsider our views about the pathways mediating c...
متن کاملThe relationship between postural control and fine manual dexterity.
The influence of the development of postural control of the trunk and center of the body on the development of fine manual dexterity ability is a common assumption. The objectives of this study were: (1) to examine the relationship between the adult version of the Nine-Hole Peg Test and the "children's version" in order to establish construct validity for the latter, and (2) to investigate the ...
متن کاملSubdivisions of primary motor cortex based on cortico-motoneuronal cells.
We used retrograde transneuronal transport of rabies virus from single muscles of rhesus monkeys to identify cortico-motoneuronal (CM) cells in the primary motor cortex (M1) that make monosynaptic connections with motoneurons innervating shoulder, elbow, and finger muscles. We found that M1 has 2 subdivisions. A rostral region lacks CM cells and represents an "old" M1 that is the standard for m...
متن کاملControl of Hand / Arm Movements Direct and Indirect Cortico - Motoneuronal Pathways
Physiol. Soc.. ESSN: 1548-9221. Visit our website at http://www.the-aps.org/. Sci./Am. American Physiological Society, 9650 Rockville Pike, Bethesda MD 20814-3991. © 2007 Int. Union Physiol. the physiological developments. It is published bimonthly in February, April, June, August, October, and December by (formerly published as News in Physiological Science) publishes brief review articles on ...
متن کاملDirect and indirect cortico-motoneuronal pathways and control of hand/arm movements.
Recent studies from our group have demonstrated the existence of a disynaptic excitatory cortico-motoneuronal (CM) pathway in macaque monkeys via propriospinal neurons in the midcervical segments. Results from behavioral studies with lesion of the direct pathway suggest that the indirect CM pathway can mediate the command for dexterous finger movements.
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ژورنال
عنوان ژورنال: Science
سال: 2017
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aan3721