Artículo

Rodriguez, M.J.; Perez-Etchegoyen, C.B.; Szczupak, L. "Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population" (2009) Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. 195(5):491-500
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Abstract:

Recent work indicated that co-activity of different motoneurons (MNs) in the leech can be regulated through a network that is centered on a pair of nonspiking (NS) neurons. Here, we investigate whether this effect generalizes to different types of MNs that display differential co-activity patterns in different motor behaviors: the dorsal longitudinal excitors DE-3 and the dorsal and ventral excitors MN-L. The data indicates that both motoneurons are coupled to the NS neurons through rectifying junctions that are activated when the motoneuron membrane potential becomes more negative than that of the NS, and that they exert an inhibitory synaptic potential on NS via a polysynaptic pathway. In addition, DE-3 and MN-L are linked by junctions that allow mutual excitation but the transmission of excitatory signals from MN-L to DE-3 depended on NS membrane potential. The results support the view that NS neurons can play a central role in orchestrating the co-activity of MNs during motor behaviors. © 2009 Springer-Verlag.

Registro:

Documento: Artículo
Título:Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population
Autor:Rodriguez, M.J.; Perez-Etchegoyen, C.B.; Szczupak, L.
Filiación:Dto de Fisiología, Biología Molecular y Celular, FCEN-UBA, IFIBYNE-CONICET, Buenos Aires, Argentina
Palabras clave:Electrical coupling; Leech; Motor circuits; Nonspiking neuron; Rectifying junctions; animal; article; classification; ganglion; innervation; leech; motoneuron; muscle; nerve cell; patch clamp; physiology; synapse; synaptic transmission; Animals; Ganglia, Invertebrate; Leeches; Motor Neurons; Muscles; Neurons; Patch-Clamp Techniques; Synapses; Synaptic Transmission
Año:2009
Volumen:195
Número:5
Página de inicio:491
Página de fin:500
DOI: http://dx.doi.org/10.1007/s00359-009-0426-7
Título revista:Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Título revista abreviado:J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol.
ISSN:03407594
CODEN:JCPAD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v195_n5_p491_Rodriguez

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Citas:

---------- APA ----------
Rodriguez, M.J., Perez-Etchegoyen, C.B. & Szczupak, L. (2009) . Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 195(5), 491-500.
http://dx.doi.org/10.1007/s00359-009-0426-7
---------- CHICAGO ----------
Rodriguez, M.J., Perez-Etchegoyen, C.B., Szczupak, L. "Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology 195, no. 5 (2009) : 491-500.
http://dx.doi.org/10.1007/s00359-009-0426-7
---------- MLA ----------
Rodriguez, M.J., Perez-Etchegoyen, C.B., Szczupak, L. "Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, vol. 195, no. 5, 2009, pp. 491-500.
http://dx.doi.org/10.1007/s00359-009-0426-7
---------- VANCOUVER ----------
Rodriguez, M.J., Perez-Etchegoyen, C.B., Szczupak, L. Premotor nonspiking neurons regulate coupling among motoneurons that innervate overlapping muscle fiber population. J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol. 2009;195(5):491-500.
http://dx.doi.org/10.1007/s00359-009-0426-7