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- Alstermark, Bror, et al.
(författare)
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Lack of monosynaptic corticomotoneuronal EPSPs in rats : disynaptic EPSPs mediated via reticulospinal neurons and polysynaptic EPSPs via segmental interneurons.
- 2004
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Ingår i: Journal of Neurophysiology. - : American Physiological Society. - 0022-3077 .- 1522-1598. ; 91:4, s. 1832-9
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Tidskriftsartikel (refereegranskat)abstract
- In the rat, some findings have been taken to suggest the existence of monosynaptic corticomotoneuronal (CM) connections. Because 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 intra- and extracellular recordings from forelimb motoneurons in anesthetized rats, revealed no monosynaptic CM excitatory postsynaptic potentials (EPSPs). The fastest descending excitation in forelimb motoneurons was disynaptically mediated via a corticoreticulospinal pathway and slowly conducted excitation via corticospinal fibers and segmental interneurons. The findings stress the importance of di- and trisynaptic excitatory corticofugal pathways to forelimb motoneurons in the control of skillful digit movements.
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- Ogawa, T., Buchert, S., Nishitani, N., Sato, N. and Lester, M.
(författare)
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Plasma density suppression process around the cusp revealed by simultaneous CUTLASS and EISCAT Svalbard radar observations.
- 2001
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Ingår i: Journal of Geophysical Research. ; 106, s. 5551-
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Tidskriftsartikel (refereegranskat)abstract
- Simultaneous CUTLASS and EISCAT Svalbard radar (ESR) observations on February 1, 1998, are used to study the generation of plasma density suppression, which may ultimately result in polar cap patch formation, occurring around the cusp region under IMF B/s
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