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Cited by 27Tactile and Sensory InteractionsNeuroscience and Neural EngineeringPeripheral Nerve Disorders

Peripheral afferents with common function cluster in the median nerve and somatotopically innervate the human palm

Ekedahl, Rolf, Frank, Ove, Hallin, Rolf G.·1997·Brain Research Bulletin
DOI 10.1016/s0361-9230(96)00324-3
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Abstract

Concentric needle electrodes with a central core diameter of 20-30 microm were used to explore median nerve fascicles in man. Such electrodes can simultaneously monitor subtle electrophysiological and topographical features even within parts of a fascicle. Single-unit recordings from myelinated fibres were more easily obtained at some intrafascicular sites than others. Typically, groups of identified myelinated fibres in these regions, possibly corresponding to a cluster of Ranvier nodes, tended to be fibres responding to stimuli of the same modality. These afferents innervated the glabrous skin of the human hand and fingers in a somatotopic manner. In particular, the somatotopy even seemed to be present at the receptor level in the skin. This novel aspect of peripheral nerve organisation is probably of fundamental importance for the interplay between peripheral and central processes involved in somatosensation both under normal conditions and in disease. Some clinical implications of the findings are discussed.

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Crossref · 10.1016/s0361-9230(96)00324-3

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  • Some evidence suggests that fibers in a single fascicle respond to a spatially restricted patch of skin.

    “Some evidence suggests that fibers in a single fascicle respond to a spatially restricted patch of skin (Ekedahl et al., 1997); as might be expected, then, stimulation of a fascicle elicits sensations that are projected to a spatially restricted patch of skin (Marchettini et al., 1990).”

    From Biomimetic approaches to bionic touch through a peripheral nerve interface (2015) · cites this paper as Ekedahl et al., 1997

  • Some evidence suggests that afferents might to some degree be clustered in the nerve based on their submodality.

    “Some evidence suggests that afferents might to some degree be clustered in the nerve based on their submodality, because nearby fibers within a given fascicle are more likely to be of the same class than would be expected by chance (Ekedahl et al., 1997;Wu et al., 1999).”

    From Biomimetic approaches to bionic touch through a peripheral nerve interface (2015) · cites this paper as Ekedahl et al., 1997

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Authors
Ekedahl, R., Frank, O., & Hallin, R. G.
Affiliations
Stockholm University (SE)
Corresponding author
Hallin, Rolf G.
Venue
Brain Research Bulletin
Publisher
Elsevier BV
Published
1997
Volume
42
Issue
5
Pages
367-376
ISSN
0361-9230 (ISSN-L)
DOI
10.1016/s0361-9230(96)00324-3
OpenAlex
W2076525855
Cited by
27
References
45
Citations by year
2025: 4 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 1 · 2020: 1 · 2018: 1 · 2015: 2 · 2014: 1 · 2012: 1
FWCI
0.45
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Brain Research Bulletin (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Peripheral Nerve Disorders
Keywords
median nerve, somatotopic organization, peripheral afferents, myelinated axons, nodes of Ranvier, single-unit recording, glabrous skin, Arecaceae, hand, finger, somatosensory perception
MeSH terms
Adult, Afferent Pathways, Electrophysiology, Female, Fingers, Hand, Humans, Male, Median Nerve, Microelectrodes, Middle Aged, Nerve Fibers, Myelinated, Ranvier's Nodes, Reference Values, Skin

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