Motor command for precision grip in the macaque monkey can be mediated by spinal interneurons

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Fältnamn	Indikatorer	Metadata
000		03093naa a2200385 4500
001		oai:DiVA.org:umu-54530
003		SwePub
008		120427s2011 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-545302 URI
024	7	a https://doi.org/10.1152/jn.00089.20112 DOI
040		a (SwePub)umu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Alstermark, Broru Umeå universitet,Fysiologi4 aut0 (Swepub:umu)bral0001
245	1 0	a Motor command for precision grip in the macaque monkey can be mediated by spinal interneurons
264	1	b American Physiological Society,c 2011
338		a print2 rdacarrier
520		a In motor control, the general view is still that spinal interneurons mainly contribute to reflexes and automatic movements. The question raised here is whether spinal interneurons can mediate the cortical command for independent finger movements, like a precision grip between the thumb and index finger in the macaque monkey, or if this function depends exclusively on a direct corticomotoneuronal pathway. This study is a followup of a previous report (Sasaki et al. J Neurophysiol 92: 3142-3147, 2004) in which we trained macaque monkeys to pick a small piece of sweet potato from a cylinder by a precision grip between the index finger and thumb. We have now isolated one spinal interneuronal system, the C3-C4 propriospinal interneurons with projection to hand and arm motoneurons. In the previous study, the lateral corticospinal tract (CST) was interrupted in C4/C5 (input intact to the C3-C4 propriospinal interneurons), and in this study, the CST was interrupted in C2 (input abolished). The precision grip could be performed within the first 15 days after a CST lesion in C4/C5 but not in C2. We conclude that C3-C4 propriospinal interneurons also can carry the command for precision grip.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Fysiologi0 (SwePub)301062 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Physiology0 (SwePub)301062 hsv//eng
653		a digit movements
653		a C3-C4 propriospinal system
653		a corticomotoneuronal pathway
700	1	a Pettersson, L Gu University of Gothenburg4 aut
700	1	a Nishimura, Yu National Institute for Physiological Sciences, Okazaki4 aut
700	1	a Yoshino-Saito, Ku National Institute for Physiological Sciences, Okazaki4 aut
700	1	a Tsuboi, Fu National Institute for Physiological Sciences, Okazaki4 aut
700	1	a Takahashi, Mu National Institute for Physiological Sciences, Okazaki4 aut
700	1	a Isa, Tu National Institute for Physiological Sciences, Okazaki4 aut
710	2	a Umeå universitetb Fysiologi4 org
773	0	t Journal of Neurophysiologyd : American Physiological Societyg 106:1, s. 122-126q 106:1<122-126x 0022-3077x 1522-1598
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-54530
856	4 8	u https://doi.org/10.1152/jn.00089.2011

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Av författaren/redakt...: Alstermark, Bror; Pettersson, L G; Nishimura, Y; Yoshino-Saito, K; Tsuboi, F; Takahashi, M; visa fler...; Isa, T; visa färre...

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