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The Effects of Agei...
The Effects of Ageing on Tactile Function in Humans
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- Mcintyre, Sarah, 1981- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten
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- Nagi, Saad (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten
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- McGlone, Francis (author)
- Liverpool John Moores University, Liverpool, UK
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- Olausson, Håkan, 1965- (author)
- Linköpings universitet,Medicinska fakulteten,Centrum för social och affektiv neurovetenskap,Region Östergötland, Neurofysiologiska kliniken US
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- English.
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In: Neuroscience. - : Elsevier. - 0306-4522 .- 1873-7544. ; 464, s. 53-58
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https://liu.diva-por... (primary) (Raw object)
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https://psyarxiv.com...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Ageing is accompanied by a steady decline in touch sensitivity and acuity. Conversely, pleasant touch, such as experienced during a caress, is even more pleasant in old age. There are many physiological changes that might explain these perceptual changes, but researchers have not yet identified any specific mechanisms. Here, we review both the perceptual and structural changes to the touch system that are associated with ageing. The structural changes include reduced elasticity of the skin in older people, as well as reduced numbers and altered morphology of skin tactile receptors. Effects of ageing on the peripheral and central nervous systems include demyelination, which affects the timing of neural signals, as well as reduced numbers of peripheral nerve fibres. The ageing brain also undergoes complex changes in blood flow, metabolism, plasticity, neurotransmitter function, and, for touch, the body map in primary somatosensory cortex. Although several studies have attempted to find a direct link between perceptual and structural changes, this has proved surprisingly elusive. We also highlight the need for more evidence regarding age-related changes in peripheral nerve function in the hairy skin, as well as the social and emotional aspects of touch.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- ageing
- touch
- peripheral nervous system
- central nervous system
- affective touch
- skin
- human
Publication and Content Type
- ref (subject category)
- for (subject category)
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