Cited by 124Tactile and Sensory InteractionsNeuroscience and Neural EngineeringMuscle activation and electromyography studies

Sensory adaptation to electrical stimulation of the somatosensory nerves

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Graczyk, Emily L, Delhaye, Benoit P, Schiefer, Matthew A, Bensmaia, Sliman J, Tyler, Dustin J·2018·Journal of Neural Engineering

Abstract

OBJECTIVE: Sensory systems adapt their sensitivity to ambient stimulation levels to improve their responsiveness to changes in stimulation. The sense of touch is also subject to adaptation, as evidenced by the desensitization produced by prolonged vibratory stimulation of the skin. Electrical stimulation of nerves elicits tactile sensations that can convey feedback for bionic limbs. In this study, we investigate whether artificial touch is also subject to adaptation, despite the fact that the peripheral mechanotransducers are bypassed. APPROACH: Using well-established psychophysical paradigms, we characterize the time course and magnitude of sensory adaptation caused by extended electrical stimulation of the residual somatosensory nerves in three human amputees implanted with cuff electrodes. MAIN RESULTS: We find that electrical stimulation of the nerve also induces perceptual adaptation that recovers after cessation of the stimulus. The time course and magnitude of electrically-induced adaptation are equivalent to their mechanically-induced counterparts. SIGNIFICANCE: We conclude that, in natural touch, the process of mechanotransduction is not required for adaptation, and artificial touch naturally experiences adaptation-induced adjustments of the dynamic range of sensations. Further, as it does for native hands, adaptation confers to bionic hands enhanced sensitivity to changes in stimulation and thus a more natural sensory experience.

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  • A lack of specificity may contribute to the sensory adaptation reported by other groups during stimulation with cuff electrodes.

    “This pattern suggests that a lack of specificity may contribute to the sensory adaptation which has been reported by other groups during stimulation with cuff electrodes [37].”

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Authors
Graczyk, E. L., Delhaye, B. P., Schiefer, M. A., Bensmaia, S. J., & Tyler, D. J.
Affiliations
  • Louis Stokes Cleveland VA Medical Center (US)
  • University of Chicago (US)
Corresponding author
Tyler, Dustin J
Venue
Journal of Neural Engineering
Published
2018-05-04
Volume
15
Issue
4
Pages
046002
ISSN
  • 1741-2552 (ISSN-L)
  • 1741-2560
OpenAlex
W2790194079
Cited by
124
References
31
Citations by year
2026: 10 · 2025: 11 · 2024: 19 · 2023: 19 · 2022: 14 · 2021: 17 · 2020: 12 · 2019: 17 · 2018: 5
FWCI
7.58
Type
journal article
Language
en
Open access
Locations
  • Journal of Neural Engineering (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DIAL (Catholic University of Leuven) (submittedVersion)
Funders
  • U.S. Department of Veterans Affairs (C3819C, I01 RX00133401)
  • National Science Foundation (DGE-1451075)
  • Defense Advanced Research Projects Agency (NC66001-15-C-4041)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
Keywords
sensory adaptation, electrical nerve stimulation, artificial touch, bionic hand, amputees, cuff electrodes, mechanotransduction, tactile perception, dynamic range
MeSH terms
Adaptation, Physiological, Amputees, Electrodes, Implanted, Electric Stimulation Therapy, Evoked Potentials, Somatosensory, Humans, Male, Peripheral Nerves, Touch, Mechanotransduction, Cellular

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