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Effects of short-term synaptic plasticity in a local microcircuit on cell firing
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.ORCID iD: 0000-0003-0281-9450
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.ORCID iD: 0000-0002-2358-7815
2003 (English)In: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 52-54, 7-12 p.Article in journal (Refereed) Published
Abstract [en]

Effects of short-term synaptic plasticity on cell firing properties in a microcircuit formed by a reciprocally connected pyramidal cell and FSN interneuron in layer 2/3 of neocortex were analyzed in a biophysical model. Induction of synaptic depression by backpropagating dendritic action potentials was replicated, as well as the resulting time dependent depression of IPSP amplitudes. Results indicate that the effect of the depression becomes significant above 30 Hz input frequency. The magnitude of the effect depends on the time constant of the dendritic calcium regulating the depression. The frequency range depends on the time constant of the IPSP.

Place, publisher, year, edition, pages
2003. Vol. 52-54, 7-12 p.
Keyword [en]
short-term synaptic plasticity, cortical microcircuit, pyramidal neurons, visual-cortex
National Category
Neurosciences Bioinformatics (Computational Biology)
Identifiers
URN: urn:nbn:se:kth:diva-22588DOI: 10.1016/s0925-2312(02)00757-9ISI: 000183514300003OAI: oai:DiVA.org:kth-22588DiVA: diva2:341286
Note
QC 20100525 QC 20111229Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Fransén, Erik

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