Letters: Rate coding of spike-timing dependent plasticity: Activity-variation-timing dependent plasticity (AVTDP)

Authors:
Kyoobin Lee;Dong-Soo Kwon
Affiliations:
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3042, 373-1 GuSung Dong YuSung Gu, Daejon 305-701, Republic of Korea;Center for Neural Science, Korea Institute of Science and Technology, Seoul 136-791, Korea
Venue:
Neurocomputing
Year:
2009

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Abstract

This paper presents a rate coded synaptic plasticity rule that has temporal characteristics of spike-timing dependent plasticity: Activity-variation-timing dependent plasticity (AVTDP). In AVTDP, the synaptic plasticity depends on the timings when the neuronal activities change as the spike timings are important in spike-timing dependent plasticity (STDP). The proposed equation has a simple form derived from a plain physical meaning. Detailed plasticity mechanisms can be interpreted through a graphical method. A series of simulations are conducted to show that AVTDP has the timing dependent characteristics of STDP.