التفاصيل البيبلوغرافية
| العنوان: |
Memristor Circuits for Simulating Neuron Spiking and Burst Phenomena |
| المؤلفون: |
Giacomo Innocenti, Mauro Di Marco, Alberto Tesi, Mauro Forti |
| المصدر: |
Frontiers in Neuroscience, Vol 15 (2021) |
| بيانات النشر: |
Frontiers Media S.A., 2021. |
| سنة النشر: |
2021 |
| المجموعة: |
LCC:Neurosciences. Biological psychiatry. Neuropsychiatry |
| مصطلحات موضوعية: |
neuron, spiking, bursting, memristor, pulse-programmed circuit, harmonic balance, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571 |
| الوصف: |
Since the introduction of memristors, it has been widely recognized that they can be successfully employed as synapses in neuromorphic circuits. This paper focuses on showing that memristor circuits can be also used for mimicking some features of the dynamics exhibited by neurons in response to an external stimulus. The proposed approach relies on exploiting multistability of memristor circuits, i.e., the coexistence of infinitely many attractors, and employing a suitable pulse-programmed input for switching among the different attractors. Specifically, it is first shown that a circuit composed of a resistor, an inductor, a capacitor and an ideal charge-controlled memristor displays infinitely many stable equilibrium points and limit cycles, each one pertaining to a planar invariant manifold. Moreover, each limit cycle is approximated via a first-order periodic approximation analytically obtained via the Describing Function (DF) method, a well-known technique in the Harmonic Balance (HB) context. Then, it is shown that the memristor charge is capable to mimic some simplified models of the neuron response when an external independent pulse-programmed current source is introduced in the circuit. The memristor charge behavior is generated via the concatenation of convergent and oscillatory behaviors which are obtained by switching between equilibrium points and limit cycles via a properly designed pulse timing of the current source. The design procedure takes also into account some relationships between the pulse features and the circuit parameters which are derived exploiting the analytic approximation of the limit cycles obtained via the DF method. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1662-453X |
| Relation: |
https://www.frontiersin.org/articles/10.3389/fnins.2021.681035/full; https://doaj.org/toc/1662-453X |
| DOI: |
10.3389/fnins.2021.681035 |
| URL الوصول: |
https://doaj.org/article/2b950b8b67fb466f8f0943a8175ebd1c |
| رقم الانضمام: |
edsdoj.2b950b8b67fb466f8f0943a8175ebd1c |
| قاعدة البيانات: |
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