The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Unmyelinated Afferents Constitute a Second System Coding Tactile Stimuli of the Human Hairy Skin
Abstract
Impulses were recorded from unmyelinated afferents innervating the forearm skin of human subjects using the technique of microneurography. Units responding to innocuous skin deformation were selected. The sample (n = 38) was split into low-threshold units (n = 27) and high-threshold units (n = 11) on the basis of three distinctive features, i.e., thresholds to skin deformation, size of response to innocuous skin deformation, and differential response to sharp and blunt stimuli. The low-threshold units provisionally were denoted tactile afferents on the basis of their response properties, which strongly suggest that they are coding some feature of tactile stimuli. They exhibited, in many respects, similar functional properties as described for low-threshold C-mechanoreceptive units in other mammals. However, a delayed acceleration, not previously demonstrated, was observed in response to long-lasting innocuous indentations. It was concluded that human hairy skin is innervated by a system of highly sensitive mechanoreceptive units with unmyelinated afferents akin to the system previously described in other mammals. The confirmation that the system is present in the forearm skin and not only in the face area where it first was identified suggests a largely general distribution although there are indications that the tactile C afferents may be lacking in the very distal parts of the limbs. The functional role of the system remains to be assessed although physiological properties of the sense organs invite to speculations that the slow tactile system might have closer relations to limbic functions than to cognitive and motor functions.
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“of which affective touch is interoceptive, as it is carried by interoceptive C fibres (Vallbo et al., 1999; Wessberg et al., 2003)”
From Atypical interoception as a common risk factor for psychopathology: A review (2021) · cites this paper as Vallbo et al., 1999
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Self-citationResponse of cutaneous sensory units with unmyelinated fibers to noxious stimuli.
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How do you feel? Interoception: The sense of the physiological condition of the body
Craig, A. D. (2002) · Nature Reviews Neuroscience · doi:10.1038/nrn894 · Cited by 6,006
Interoception: the sense of the physiological condition of the body
(Bud) Craig, A. (2003) · Current Opinion in Neurobiology · doi:10.1016/s0959-4388(03)00090-4 · Cited by 2,556
The nature of feelings: evolutionary and neurobiological origins
Damasio, A., & Carvalho, G. B. (2013) · Nature Reviews Neuroscience · doi:10.1038/nrn3403 · Cited by 1,280
Coding of pleasant touch by unmyelinated afferents in humans
Löken, L. S., Wessberg, J., Morrison, I., McGlone, F., & Olausson, H. (2009) · Nature Neuroscience · doi:10.1038/nn.2312 · Cited by 1,120
Self-citationDiscriminative and affective touch: Sensing and feeling.
McGlone, F., Wessberg, J., & Olausson, H. (2014) · Neuron · doi:10.1016/j.neuron.2014.05.001 · Cited by 1,112
Self-citation
Metadata
- Authors
- Vallbo, Å. B., Olausson, H., & Wessberg, J.
- Affiliations
- University of Gothenburg (SE)
- Venue
- Journal of Neurophysiology
- Publisher
- American Physiological Society
- Published
- 1999-06-01
- Volume
- 81
- Issue
- 6
- Pages
- 2753-2763
- ISSN
- 0022-3077 (ISSN-L)
- 1522-1598
- OpenAlex
- W1824892726
- Cited by
- 571
- References
- 45
- Citations by year
- 2026: 27 · 2025: 38 · 2024: 32 · 2023: 32 · 2022: 35 · 2021: 51 · 2020: 36 · 2019: 31 · 2018: 33 · 2017: 30 · 2016: 29 · 2015: 23 · 2014: 23 · 2013: 21 · 2012: 16
- FWCI
- 2.97
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Neurophysiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
- Health Sciences › Medicine › Physiology (medical) › Pain Mechanisms and Treatments
- Keywords
- unmyelinated afferents, tactile coding, hairy skin, mechanoreceptors, skin deformation, forearm skin, microneurography
- MeSH terms
- Adult, Female, Hair, Hot Temperature, Humans, Male, Mechanoreceptors, Myelin Sheath, Nerve Fibers, Neural Conduction, Neurons, Afferent, Physical Stimulation, Sensory Thresholds, Skin, Touch
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