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(a) Two individual driving effort sub-modules responding for only positive and only negative inputs respectively.

By Qingjiang Li (404002), Alexander Serb (704581), Themistoklis Prodromakis (704582) and Hui Xu (9203)


<p>The overall drive effort variable <i>v</i><sub><i>z</i></sub> equals the sum of <i>v</i><sub><i>z</i>+</sub> and <i>v</i><sub><i>z</i>−</sub>. (b) and (c) Asymmetric STDP curves attained by employing different resistance values in the two driving sub-modules and modifying bipolar threshold values (<i>B</i><sub>+</sub> = 0.31nV, <i>B</i><sub>−</sub> = −0.27nV) to compensate for STDP curve drift. Inset: Corresponding STDP curves with original bipolar threshold values (<i>B</i><sub>+</sub> = −<i>B</i><sub>−</sub> = 0.35nV).</p

Topics: Biological Sciences, memristance changes, synaptic modification, synaptic characteristics, pulse pairs, memristive devices, Memristor SPICE Model Accounting, stdp, Synaptic Activity Dependence, activity dependence dynamics, memristor SPICE model
Year: 2015
DOI identifier: 10.1371/journal.pone.0120506.g005
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Provided by: FigShare
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