Cited by 146Advanced Memory and Neural ComputingNeural Networks and Reservoir ComputingFerroelectric and Negative Capacitance Devices

Simultaneous emulation of synaptic and intrinsic plasticity using a memristive synapse

Open access
Sung, Sang Hyun, Kim, Tae Jin, Shin, Hyera, Im, Tae Hong, Lee, Keon Jae·2022·Nature Communications

Abstract

Neuromorphic computing targets the hardware embodiment of neural network, and device implementation of individual neuron and synapse has attracted considerable attention. The emulation of synaptic plasticity has shown promising results after the advent of memristors. However, neuronal intrinsic plasticity, which involves in learning process through interactions with synaptic plasticity, has been rarely demonstrated. Synaptic and intrinsic plasticity occur concomitantly in learning process, suggesting the need of the simultaneous implementation. Here, we report a neurosynaptic device that mimics synaptic and intrinsic plasticity concomitantly in a single cell. Threshold switch and phase change memory are merged in threshold switch-phase change memory device. Neuronal intrinsic plasticity is demonstrated based on bottom threshold switch layer, which resembles the modulation of firing frequency in biological neuron. Synaptic plasticity is also introduced through the nonvolatile switching of top phase change layer. Intrinsic and synaptic plasticity are simultaneously emulated in a single cell to establish the positive feedback between them. A positive feedback learning loop which mimics the retraining process in biological system is implemented in threshold switch-phase change memory array for accelerated training.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41467-022-30432-2

Cites

73 of 73 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Owing to its self-rectifying characteristics, the device may operate accurately even in a 1k × 1k array without sneak path disturbance.

    “Owing to its self-rectifying characteristics, the device may operate accurately even in a 1k × 1k array without sneak path disturbance34,35”

    From Flexible self-rectifying synapse array for energy-efficient edge multiplication in electrocardiogram diagnosis (2025) · cites this paper as [35]

    The Results section (‘Operation of volatile TS, nonvolatile PCM, and unified TS-PCM’; page unavailable) says the TS layer prevents sneak currents, but reports a calculated maximum array size of 316 × 316 at a 10% readout margin, or 214 × 214 in the maximum-noise case. It does not support accurate operation at 1k × 1k; its stated size limits are substantially smaller. (LLM, conf=0.88)

    Checked by a reasoning model — may be wrong.

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Sung, S. H., Kim, T. J., Shin, H., Im, T. H., & Lee, K. J.
Affiliations
Korea Advanced Institute of Science and Technology (KR)
Corresponding author
Lee, Keon Jae
Venue
Nature Communications
Published
2022-05-19
Volume
13
Issue
1
Pages
2811-2811
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4280550359
Cited by
146
References
73
Citations by year
2026: 22 · 2025: 56 · 2024: 35 · 2023: 27 · 2022: 6
FWCI
8.49
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Samsung (IO201214-08153-01)
  • National Research Foundation of Korea (NRF- 2020M3C1B8081519, NRF- 2020M3F3A2A02082445)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Memory and Neural Computing
  • Physical Sciences › Computer Science › Artificial Intelligence › Neural Networks and Reservoir Computing
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Ferroelectric and Negative Capacitance Devices
Keywords
memristive synapses, synaptic plasticity, threshold switches, phase-change memory, neuromorphic hardware, nonvolatile switching, retraining, memristor arrays
MeSH terms
Learning, Neuronal Plasticity, Neurons, Synapses, Neural Networks, Computer

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review