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Abarbanel, H.D.I.; Gibb, L.; Mindlin, G.B.; Rabinovich, M.I.; Talathi, S. "Spike timing and synaptic plasticity in the premotor pathway of birdsong" (2004) Biological Cybernetics. 91(3):159-167
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Abstract:

The neural circuits of birdsong appear to utilize specific time delays in their operation. In particular, the anterior forebrain pathway (AFP) is implicated in an approximately 40- to 50- ms time delay, ΔT, playing a role in the relative timing of premotor signals from the nucleus HVc to the nucleus robust nucleus of the archistratium (RA) and control/learning signals from the nucleus lateral magnocellular nucleus of the anterior neostratium (lMAN) to RA. Using a biophysical model of synaptic plasticity based on experiments on mammalian hippocampal and neocortical pyramidal neurons, we propose an understanding of this ≈ 40- to 50- ms delay. The biophysical model describes the influence of Ca2+ influx into the postsynaptic RA cells through NMDA and AMPA receptors and the induction of LTP and LTD through complex metabolic pathways. The delay, ΔT, between HVc → RA premotor signals and lMAN → RA control/learning signals plays an essential role in determining if synaptic plasticity is induced by signaling from each pathway into RA. If ΔT is substantially larger than 40 ms, no plasticity is induced. If ΔT is much less than 40 ms, only potentiation is expected. If ΔT≈ 40 ms, the sign of synaptic plasticity is sensitive to ΔT. Our results suggest that changes in ΔT may influence learning and maintenance of birdsong. We investigate the robustness of this result to noise and to the removal of the Ca2+ contribution from lMAN → RA NMDA receptors. © Springer-Verlag 2004.

Registro:

Documento: Artículo
Título:Spike timing and synaptic plasticity in the premotor pathway of birdsong
Autor:Abarbanel, H.D.I.; Gibb, L.; Mindlin, G.B.; Rabinovich, M.I.; Talathi, S.
Filiación:Department of Physics, Marine Physical Laboratory (Scripps Institution of Oceanography), University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093-0402, United States
Center for Theoretical Biological Physics, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093-0402, United States
Institute for Nonlinear Science, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093-0402, United States
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Pabellon I, (1428) Buenos Aires, Argentina
Palabras clave:Behavioral research; Biomedical engineering; Cells; Mathematical models; Perturbation techniques; Plasticity; Anterior forebrain pathway (AFP); Birdsong; Motor pathway; Synaptic plasticity; Neurophysiology; Mammalia; glutamate receptor; action potential; animal; article; biological model; brain; calcium signaling; male; nerve cell; nerve cell network; nerve cell plasticity; nerve tract; physiology; reaction time; songbird; synaptic transmission; time; vocalization; Action Potentials; Animals; Brain; Calcium Signaling; Male; Models, Neurological; Nerve Net; Neural Pathways; Neuronal Plasticity; Neurons; Reaction Time; Receptors, Glutamate; Songbirds; Synaptic Transmission; Time Factors; Vocalization, Animal
Año:2004
Volumen:91
Número:3
Página de inicio:159
Página de fin:167
DOI: http://dx.doi.org/10.1007/s00422-004-0495-1
Título revista:Biological Cybernetics
Título revista abreviado:Biol. Cybern.
ISSN:03401200
CODEN:BICYA
CAS:Receptors, Glutamate
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03401200_v91_n3_p159_Abarbanel

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Citas:

---------- APA ----------
Abarbanel, H.D.I., Gibb, L., Mindlin, G.B., Rabinovich, M.I. & Talathi, S. (2004) . Spike timing and synaptic plasticity in the premotor pathway of birdsong. Biological Cybernetics, 91(3), 159-167.
http://dx.doi.org/10.1007/s00422-004-0495-1
---------- CHICAGO ----------
Abarbanel, H.D.I., Gibb, L., Mindlin, G.B., Rabinovich, M.I., Talathi, S. "Spike timing and synaptic plasticity in the premotor pathway of birdsong" . Biological Cybernetics 91, no. 3 (2004) : 159-167.
http://dx.doi.org/10.1007/s00422-004-0495-1
---------- MLA ----------
Abarbanel, H.D.I., Gibb, L., Mindlin, G.B., Rabinovich, M.I., Talathi, S. "Spike timing and synaptic plasticity in the premotor pathway of birdsong" . Biological Cybernetics, vol. 91, no. 3, 2004, pp. 159-167.
http://dx.doi.org/10.1007/s00422-004-0495-1
---------- VANCOUVER ----------
Abarbanel, H.D.I., Gibb, L., Mindlin, G.B., Rabinovich, M.I., Talathi, S. Spike timing and synaptic plasticity in the premotor pathway of birdsong. Biol. Cybern. 2004;91(3):159-167.
http://dx.doi.org/10.1007/s00422-004-0495-1