Dynamic touch reduces physiological arousal in preterm infants: A role for c-tactile afferents?
Affective
C-tactile
Heart-rate
Infant
Preterm
Touch
Journal
Developmental cognitive neuroscience
ISSN: 1878-9307
Titre abrégé: Dev Cogn Neurosci
Pays: Netherlands
ID NLM: 101541838
Informations de publication
Date de publication:
10 2019
10 2019
Historique:
received:
30
01
2019
revised:
27
06
2019
accepted:
19
08
2019
pubmed:
6
9
2019
medline:
11
2
2020
entrez:
6
9
2019
Statut:
ppublish
Résumé
Preterm birth is a significant risk factor for a range of long-term health problems and developmental disabilities. Though touch plays a central role in many perinatal care strategies, the neurobiological basis of these approaches is seldom considered. C-Tactile afferents (CTs) are a class of unmyelinated nerve fibre activated by low force, dynamic touch. Consistent with an interoceptive function, touch specifically targeted to activate CTs activates posterior insular cortex and has been reported to reduce autonomic arousal. The present study compared the effect of 5 min of CT optimal velocity stroking touch to 5 min of static touch on the heart-rate and oxygen saturation levels of preterm infants between 28- & 37-weeks gestational age. CT touch produced a significant decrease in infants' heart-rates and increase in their blood oxygenation levels, which sustained throughout a 5-min post-touch period. In contrast, there was no significant change in heart-rate or blood oxygenation levels of infants receiving static touch. These findings provide support for the hypothesis that CTs signal the affective quality of nurturing touch, providing a neurobiological substrate for the apparent beneficial effects of neonatal tactile interventions and offering insight for their optimisation.
Identifiants
pubmed: 31487608
pii: S1878-9293(19)30049-0
doi: 10.1016/j.dcn.2019.100703
pmc: PMC6969366
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
100703Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.
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