PMID- 21964248 OWN - NLM STAT- MEDLINE DCOM- 20120417 LR - 20191210 IS - 1769-7115 (Electronic) IS - 0928-4257 (Linking) VI - 105 IP - 1-3 DP - 2011 Jan-Jun TI - The role of the asymptotic dynamics in the design of FPGA-based hardware implementations of gIF-type neural networks. PG - 91-7 LID - 10.1016/j.jphysparis.2011.09.004 [doi] AB - This paper presents a numerical analysis of the role of asymptotic dynamics in the design of hardware-based implementations of the generalised integrate-and-fire (gIF) neuron models. These proposed implementations are based on extensions of the discrete-time spiking neuron model, which was introduced by Soula et al., and have been implemented on Field Programmable Gate Array (FPGA) devices using fixed-point arithmetic. Mathematical studies conducted by Cessac have evidenced the existence of three main regimes (neural death, periodic and chaotic regimes) in the activity of such neuron models. These activity regimes are characterised in hardware by considering a precision analysis in the design of an architecture for an FPGA-based implementation. The proposed approach, although based on gIF neuron models and FPGA hardware, can be extended to more complex neuron models as well as to different in silico implementations. CI - Copyright (c) 2011 Elsevier Ltd. All rights reserved. FAU - Rostro-Gonzalez, Horacio AU - Rostro-Gonzalez H AD - NeuroMathComp team (INRIA, ENS Paris, UNSA LJAD), Sophia Antipolis, France. Horacio.Rostro_Gonzalez@inria.fr FAU - Cessac, Bruno AU - Cessac B FAU - Girau, Bernard AU - Girau B FAU - Torres-Huitzil, Cesar AU - Torres-Huitzil C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110921 PL - France TA - J Physiol Paris JT - Journal of physiology, Paris JID - 9309351 SB - IM MH - Action Potentials/physiology MH - *Computer Simulation MH - *Models, Neurological MH - *Neural Networks, Computer MH - *Neurons EDAT- 2011/10/04 06:00 MHDA- 2012/04/18 06:00 CRDT- 2011/10/04 06:00 PHST- 2011/02/28 00:00 [received] PHST- 2011/09/06 00:00 [revised] PHST- 2011/09/08 00:00 [accepted] PHST- 2011/10/04 06:00 [entrez] PHST- 2011/10/04 06:00 [pubmed] PHST- 2012/04/18 06:00 [medline] AID - S0928-4257(11)00030-1 [pii] AID - 10.1016/j.jphysparis.2011.09.004 [doi] PST - ppublish SO - J Physiol Paris. 2011 Jan-Jun;105(1-3):91-7. doi: 10.1016/j.jphysparis.2011.09.004. Epub 2011 Sep 21.