• Nature neuroscience · May 2009

    Coding of pleasant touch by unmyelinated afferents in humans.

    • Line S Löken, Johan Wessberg, India Morrison, Francis McGlone, and Håkan Olausson.
    • Institute of Neuroscience and Physiology, University of Gothenburg, Sweden. line.loken@neuro.gu.se
    • Nat. Neurosci. 2009 May 1;12(5):547-8.

    AbstractPleasant touch sensations may begin with neural coding in the periphery by specific afferents. We found that during soft brush stroking, low-threshold unmyelinated mechanoreceptors (C-tactile), but not myelinated afferents, responded most vigorously at intermediate brushing velocities (1-10 cm s(-1)), which were perceived by subjects as being the most pleasant. Our results indicate that C-tactile afferents constitute a privileged peripheral pathway for pleasant tactile stimulation that is likely to signal affiliative social body contact.

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