Differences in Input Space Stability Between Using the Inverted Output of Amplifier and Negative Conductance for Inhibitory Synapse

Authors:
Min-Jae Kang;Ho-Chan Kim;Wang-Cheol Song;Junghoon Lee;Hee-Sang Ko;Jacek M. Zurada
Affiliations:
Faculty of Electrical and Electronic Engineering, Cheju National University, Jeju, 690-756, Korea;Faculty of Electrical and Electronic Engineering, Cheju National University, Jeju, 690-756, Korea;Department of Computer Engineering, Cheju National University, Jeju, 690-756, Korea;Department of Computer Science, Cheju National University, Jeju, 690-756, Korea;Dept. of Electrical and Computer Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Cananda,;Department of Electrical Engineering, University of Louisville, Louisville, KY, 40292, U.S.A
Venue:
ISNN '07 Proceedings of the 4th international symposium on Neural Networks: Advances in Neural Networks
Year:
2007

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Abstract

In this paper, the difference between using the inverted neuron output and negative resistor for expressing inhibitory synapse is studied. We analyzed that the total conductance seen at the neuron input is different in these two methods. And this total conductance has been proved to effect on the system stability in this paper. Also, we proposed the method how to stabilize the input space and improve the system's performance by adjusting the input conductance between neuron input and ground. Pspice is used for circuit level simulation.