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Title: The biology of skin wetness perception and its implications in manual function and for reproducing complex somatosensory signals in neuroprosthetics
Authors: Filingeri, Davide
Ackerley, Rochelle
Issue Date: 2017
Publisher: © American Physiological Society
Citation: FILINGERI, D. and ACKERLEY, R., 2017. The biology of skin wetness perception and its implications in manual function and for reproducing complex somatosensory signals in neuroprosthetics. Journal of Neurophysiology, 117 (4), pp. 1761-1775.
Abstract: Our perception of skin wetness is generated readily, yet humans have no known receptor (hygroreceptor) to signal this directly. It is easy to imagine the sensation of water running over our hands, or the feel of rain on our skin. The synthetic sensation of wetness is thought to be produced from a combination of specific skin thermal and tactile inputs, registered through thermoreceptors and mechanoreceptors, respectively. The present review explores how thermal and tactile afference from the periphery can generate the percept of wetness centrally. We propose that the main signals include information about skin cooling, signaled primarily by thinly-myelinated thermoreceptors, and rapid changes in touch, through fast-conducting, myelinated mechanoreceptors. Potential central sites for integration of these signals, and thus the perception of skin wetness, include the primary and secondary somatosensory cortices and the insula cortex. The interactions underlying these processes can also be modeled to aid in understanding and engineering the mechanisms. Further, we discuss the role that sensing wetness could play in precision grip and the dexterous manipulation of objects. We expand on these lines of inquiry to the application of the knowledge in designing and creating skin sensory feedback in prosthetics. The addition of real-time, complex sensory signals would mark a significant advance in the use and incorporation of prosthetic body parts for amputees in everyday life.
Description: This paper is in closed access until 25th Jan 2018.
Sponsor: This research was funded by a grant from the FP7-People-COFUND (Marie Curie Actions) of the European Union, under REA grant agreement No. 608743.
Version: Accepted for publication
DOI: 10.1152/jn.00883.2016
URI: https://dspace.lboro.ac.uk/2134/24142
Publisher Link: http://dx.doi.org/10.1152/jn.00883.2016
ISSN: 1522-1598
Appears in Collections:Closed Access (Design School)

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