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Affective Touch and the Neurophysiology of CT Afferents by Håkan Olausson, Johan Wessberg, India Morrison, Francis

By Håkan Olausson, Johan Wessberg, India Morrison, Francis McGlone

CT afferents are receptors in mammalian bushy pores and skin that fireside motion potentials whilst the surface is touched calmly which makes them rather vital in affective touch.  typically neuroscientific learn has fascinated by extra discriminative and haptic homes of contact that are mediated via large myelinated afferents and the coding homes and useful association of unmyelinated CT afferents were studied a lot less.  The proposed quantity will draw jointly current wisdom during this nascent box. Separate sections will deal with (1) how we will be able to degree affective contact, (2) CT constitution and body structure, (3) CT processing, (4) the contribution of CTs to sexual habit, (5) medical relevance, (6) advertisement relevance, and (7) destiny study considerations.​

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Extra resources for Affective Touch and the Neurophysiology of CT Afferents

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34 M. Pitcher et al. Fig. 1 The receptive field of a C mechanoreceptor. (a) shows five records obtained when different spots on the skin were touched with the probe. The final load is nearly the same (2 g weight) for all positions. The distances of the probe from the most sensitive central position are indicated in millimeters. (b) is a diagram summarizing all the results for the same unit. The skin was stimulated on a 1 mm grid and each spot is indicated by a filled circle in the diagram. The latency of the first impulse at each position is shown by the shading.

2014). Psychoneural Analyses Indicate Hedonic Potential of the CT System In response to a moving touch stimulus most mechanoreceptive afferents respond with higher impulse rate the faster the movement. However, this is not true with CT afferents. A unique feature of particular significance for the hedonic touch hypothesis is their relatively poor response to fast-moving stimuli (Nordin 1990; Vallbo et al. 1999). 14 illustrates that human CTs respond with a similar impulse rate when a probe is moving across the skin at a low speed and at a five times higher speed.

J Neurosci 34(8):2879–2883 Ackerley R, Saar K, McGlone F, Backlund Wasling H (2014b) Quantifying the sensory and emotional perception of touch: differences between glabrous and hairy skin. Front Behav Neurosci 8:34 Adriensen H, Gybels J, Handwerker HO, van Hees J (1983) Response properties of the thin myelinated (A-delta) fibers in the human skin. J Neurophysiol 49:111–122 Bessou P, Burgess PR, Perl ER, Taylor CB (1971) Dynamic properties of mechanoreceptors with unmyelinated (C) fibers. J Neurophysiol 34:116–131 Brown AG, Iggo A (1967) A quantitative study of cutaneous receptors and afferent fibres in the cat and rabbit.

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