Direct and indirect cortico-motoneuronal pathways and control of hand/arm movements.
نویسندگان
چکیده
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.
منابع مشابه
Control 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 کاملYukari Ohki , Bror Alstermark , Lars - Gunnar Pettersson and Shigeto Sasaki Control of Hand / Arm Movements Direct and Indirect Cortico - Motoneuronal
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 کاملTadashi Isa , Yukari Ohki , Bror Alstermark , Lars - Gunnar Pettersson and Shigeto Sasaki Control 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 کاملLack of monosynaptic corticomotoneuronal EPSPs in rats: disynaptic EPSPs mediated via reticulospinal neurones and polysynaptic EPSPs via segmental interneurones
In the rat, some findings have been taken to suggest the existence of monosynaptic cortico-motoneuronal (CM) connections. Since this connection is believed to be largely responsible for the ability to make independent digit movements in primates and man, it has been inferred that the monosynaptic CM connection in the rat is likewise important for skilled prehension. Comparison of intraand extra...
متن کاملDifferential effects of startle on reaction time for finger and arm movements.
Recent studies using a reaction time (RT) task have reported that a preprogrammed response could be triggered directly by a startling acoustic stimulus (115-124 dB) presented along with the usual "go" signal. It has been suggested that details of the upcoming response could be stored subcortically and are accessible by the startle volley, directly eliciting the correct movement. However, certai...
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عنوان ژورنال:
- Physiology
دوره 22 شماره
صفحات -
تاریخ انتشار 2007