NEURONAL MEMBRANE PATCHES WITH STOCHASTIC HODGKIN–HUXLEY CHANNELS 1 Mahmut Ozer, MuhammetUzuntarla, Matjaž Perc, Lyle J.Graham * Zonguldak Karaelmas University, Turkey * University of Maribor, Slovenia * Laboratory of Neurophysics and Physiology, France * Journal of Theoretical Biology, 2009 VC Lab, Dept. of Computer Science, NTHU, Taiwan SPIKE LATENCY AND JITTER OF OVERVIEW Introduction VC Lab, Dept. of Computer Science, NTHU, Taiwan Stochastic Resonance Neuron Na, K Model and Methods Simulation data Real data Conclusion Reference 2 INTRODUCTION Stochastic Resonance VC Lab, Dept. of Computer Science, NTHU, Taiwan 3 •http://www.umsl.edu/~neurodyn/assets/pdf/VisualSR.pdf INTRODUCTION Neuron VC Lab, Dept. of Computer Science, NTHU, Taiwan 4 •http://www.nia.nih.gov/NR/rdonlyres/4E12F6CF-2436-47DB-8CC5-607E82B2B8E4/2372/neurons_big1.jpg •http://people.eku.edu/ritchisong/301images/Neuron_action_potential.jpg INTRODUCTION Neuron VC Lab, Dept. of Computer Science, NTHU, Taiwan 5 •http://www.nia.nih.gov/NR/rdonlyres/4E12F6CF-2436-47DB-8CC5-607E82B2B8E4/2372/neurons_big1.jpg •http://faculty.washington.edu/chudler/ap.html INTRODUCTION Na, K VC Lab, Dept. of Computer Science, NTHU, Taiwan 6 •http://people.eku.edu/ritchisong/301images/potassiumchannel_ionflow.jpg MODEL AND METHODS Hodgkin and Huxley model (H-H) VC Lab, Dept. of Computer Science, NTHU, Taiwan Noise 7 MODEL AND METHODS Mean Latency(ML) VC Lab, Dept. of Computer Science, NTHU, Taiwan Standard Deviation of the Latencies 8 RESULTS Dependence of latency and jitter on channel noise during spontaneous firing VC Lab, Dept. of Computer Science, NTHU, Taiwan 9 RESULTS Dependence of latency and jitter on channel noise and input frequency VC Lab, Dept. of Computer Science, NTHU, Taiwan 10 RESULTS Dependence of latency and jitter on the initial input phase VC Lab, Dept. of Computer Science, NTHU, Taiwan 11 CONCLUSION VC Lab, Dept. of Computer Science, NTHU, Taiwan NDD(noise delayed decay) Low-pass filter in subthreshold regions Channels may enhance the range of input frequencies for effective detection of first spikes 12 REFERENCE VC Lab, Dept. of Computer Science, NTHU, Taiwan http://people.eku.edu/ritchisong/301notes2.htm Daqing Guo, Chunguang Li, Stochastic and coherence resonance in feed-forward-loop neuronal network motifs, Physical Review E 79, 2009 http://beaver.dlc.ncnu.edu.tw/projects/emag/show. aspx?dataId=f594b906-2b27-11d4-b17f0050bae32d5f 13
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