A Bio-mimetic Neuromorphic Model for Heat-evoked Nociceptive Withdrawal Reflex in Upper Limb

Fengyi Wang, J. Rogelio Guadarrama Olvera, Nitish Thakor, Gordon Cheng

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

The nociceptive withdrawal reflex (NWR) is a mechanism to mediate interactions and protect the body from damage in a potentially dangerous environment. To better convey warning signals to users of prosthetic arms or autonomous robots and protect them by triggering a proper NWR, it is useful to use a biological representation of temperature information for fast and effective processing. In this work, we present a neuromorphic spiking network for heat-evoked NWR by mimicking the structure and encoding scheme of the reflex arc. The network is trained with the bio-plausible reward modulated spike timing-dependent plasticity learning algorithm. We evaluated the proposed model and three other methods in recent studies that trigger NWR in an experiment with radiant heat. We found that only the neuromorphic model exhibits the spatial summation (SS) effect and temporal summation (TS) effect similar to humans and can encode the reflex strength matching the intensity of the stimulus in the relative spike latency online. The improved bio-plausibility of this neuromorphic model could improve sensory feedback in neural prostheses.

OriginalspracheEnglisch
Titel11th International IEEE/EMBS Conference on Neural Engineering, NER 2023 - Proceedings
Herausgeber (Verlag)IEEE Computer Society
ISBN (elektronisch)9781665462921
DOIs
PublikationsstatusVeröffentlicht - 2023
Veranstaltung11th International IEEE/EMBS Conference on Neural Engineering, NER 2023 - Baltimore, USA/Vereinigte Staaten
Dauer: 25 Apr. 202327 Apr. 2023

Publikationsreihe

NameInternational IEEE/EMBS Conference on Neural Engineering, NER
Band2023-April
ISSN (Print)1948-3546
ISSN (elektronisch)1948-3554

Konferenz

Konferenz11th International IEEE/EMBS Conference on Neural Engineering, NER 2023
Land/GebietUSA/Vereinigte Staaten
OrtBaltimore
Zeitraum25/04/2327/04/23

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