Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device

Abstract The forces that are developed when manipulating objects generate sensory cues that inform the central nervous system about the qualities of the object’s surface and the status of the hand/object interaction. Afferent responses to frictional transients or slips have been studied in the conte...

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Autores principales:	Mariama Dione, Roger Holmes Watkins, Eric Vezzoli, Betty Lemaire-Semail, Johan Wessberg
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f1e6e546604449c3969cbfd4c99245f3
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spelling	oai:doaj.org-article:f1e6e546604449c3969cbfd4c99245f32021-12-02T14:49:10ZHuman low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device10.1038/s41598-021-90533-82045-2322https://doaj.org/article/f1e6e546604449c3969cbfd4c99245f32021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90533-8https://doaj.org/toc/2045-2322Abstract The forces that are developed when manipulating objects generate sensory cues that inform the central nervous system about the qualities of the object’s surface and the status of the hand/object interaction. Afferent responses to frictional transients or slips have been studied in the context of lifting/holding tasks. Here, we used microneurography and an innovative tactile stimulator, the Stimtac, to modulate both the friction level of a surface, without changing the surface or adding a lubricant, and, to generate the frictional transients in a pure and net fashion. In three protocols, we manipulated: the frictional transients, the friction levels, the rise times, the alternation of phases of decrease or increase in friction to emulate grating-like stimuli. Afferent responses were recorded in 2 FAIs, 1 FAII, 2 SAIs and 3 SAIIs from the median nerve of human participants. Independently of the unit type, we observed that: single spikes were generated time-locked to the frictional transients, and that reducing the friction level reduced the number of spikes during the stable phase of the stimulation. Our results suggest that those frictional cues are encoded in all the unit types and emphasize the possibility to use the Stimtac device to control mechanoreceptor firing with high temporal precision.Mariama DioneRoger Holmes WatkinsEric VezzoliBetty Lemaire-SemailJohan WessbergNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mariama Dione Roger Holmes Watkins Eric Vezzoli Betty Lemaire-Semail Johan Wessberg Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
description	Abstract The forces that are developed when manipulating objects generate sensory cues that inform the central nervous system about the qualities of the object’s surface and the status of the hand/object interaction. Afferent responses to frictional transients or slips have been studied in the context of lifting/holding tasks. Here, we used microneurography and an innovative tactile stimulator, the Stimtac, to modulate both the friction level of a surface, without changing the surface or adding a lubricant, and, to generate the frictional transients in a pure and net fashion. In three protocols, we manipulated: the frictional transients, the friction levels, the rise times, the alternation of phases of decrease or increase in friction to emulate grating-like stimuli. Afferent responses were recorded in 2 FAIs, 1 FAII, 2 SAIs and 3 SAIIs from the median nerve of human participants. Independently of the unit type, we observed that: single spikes were generated time-locked to the frictional transients, and that reducing the friction level reduced the number of spikes during the stable phase of the stimulation. Our results suggest that those frictional cues are encoded in all the unit types and emphasize the possibility to use the Stimtac device to control mechanoreceptor firing with high temporal precision.
format	article
author	Mariama Dione Roger Holmes Watkins Eric Vezzoli Betty Lemaire-Semail Johan Wessberg
author_facet	Mariama Dione Roger Holmes Watkins Eric Vezzoli Betty Lemaire-Semail Johan Wessberg
author_sort	Mariama Dione
title	Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
title_short	Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
title_full	Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
title_fullStr	Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
title_full_unstemmed	Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
title_sort	human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f1e6e546604449c3969cbfd4c99245f3
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Human low-threshold mechanoafferent responses to pure changes in friction controlled using an ultrasonic haptic device

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