Deterministic Multimodal Perturbation Enables Neuromorphic-Compatible Signal Multiplexing

Ui Jin Kim, Dong Hae Ho, Yoon Young Choi, Yongsuk Choi, Dong Gue Roe, Yonghyun Albert Kwon, Seongchan Kim, Young Jin Choi, Yejin Heo, Sae Byeok Jo, Geun Yeol Bae, Taeyoon Lee, Jeong Ho Cho

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Human multisensory neurons integrate multiple sensory information obtained from the external environment for precise interpretation of an event. Inspired by biological multisensory integration/multiplexing behavior, an artificial multimodal integration system capable of emulating the perception of discomfort based on the integration of multiple sensory signals is presented. The system utilizes a sensory ring oscillator that concisely and efficiently integrates thermosensory and hygrosensory signals from artificial receptors into voltage pulses whose amplitude and frequency reflect the two individual sensory signals. Subsequently, a synaptic transistor translates voltage pulses into a postsynaptic current, which exhibits a high correlation with the calculated humidex. Finally, the feasibility of the artificial multimodal integration system is successfully demonstrated using light-emitting diode discomfort indicators, suggesting that the proposed system can act as a foundation for future studies pertaining to neuromorphic perception and complex neurorobotics.

Original languageEnglish
Pages (from-to)102-110
Number of pages9
JournalACS Materials Letters
Issue number1
Publication statusPublished - 2022 Jan 3

Bibliographical note

Funding Information:
This work was supported by the Basic Science Program (No. 2020R1A2C2007819) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science and ICT, the Materials & Components Technology Development Program (No. 20006537, Development of High Performance Insulation Materials for Flexible OLED Display TFT) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea), and the Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, the Ministry of Food and Drug Safety) (Project No. KMDF_PR_20200901_0093, 9991006766).

Publisher Copyright:
© 2021 American Chemical Society

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Biomedical Engineering
  • Materials Science(all)


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