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Probabilistic properties of neuron spiking time-series obtained in vivo |
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| Authors: | A Bershadskii E Dremencov D Fukayama G Yadid |
| Institution: | (1) ICAR, PO Box 31155, Jerusalem 91000, Israel and Mason Laboratory, Yale University, New Haven, CT 06520-8284, USA, IL;(2) Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel, IL;(3) Department of Physics, Chuo University, Tokyo 112-8551, Japan, JP |
| Abstract: | Probabilistic properties of spiking time-series obtained in vivo from singular neurons belonging to Red Nucleus of brain are analyzed for two groups of rats: genetically defined rat model of depression (Flinders Sensitive Rat Line - FSL) and a control (healthy) group. The FSL group shows a distribution of interspike intervals with a much longer tail than that found for normal rats. The former distribution (for the FSL group) indicates a power-law with exponent α = - 1±0.1. A simple thermodynamic (noise) model is elaborated to explain obtained results. Received 13 May 2001 and Received in final form 20 September 2001 |
| Keywords: | PACS 87 19 La Neuroscience – 87 18 Sn Neural networks – 87 17 -d Cellular structure and processes – 87 10 +e General theory and mathematical aspects |
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