Gentle touch perception: From early childhood to adolescence

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Ilona Croy - , Department of Psychotherapy and Psychosomatic Medicine, University Hospital Carl Gustav Carus Dresden, TUD Dresden University of Technology, Center for Social and Affective Neuroscience, Linköping University (Author)
  • Isac Sehlstedt - , Linköping University (Author)
  • Helena Backlund Wasling - , University of Gothenburg (Author)
  • Rochelle Ackerley - , University of Gothenburg (Author)
  • Håkan Olausson - , Linköping University (Author)

Abstract

Affective touch plays an important role in children's social interaction and is involved in shaping the development of the social brain. The positive affective component of touch is thought to be conveyed via a group of unmyelinated, low-threshold mechanoreceptive afferents, known as C-tactile fibers that are optimally activated by gentle, slow, stroking touch. Touch targeting these C-tactile fibers has been shown to decrease the heart rate in infants. The current study investigated the relationship between age and psychophysical ratings in response to affective touch. A total of n=43 participants (early childhood: aged 5-8 years, 9 girls, 12 boys; late childhood: aged 9-12 years, 12 girls, 10 boys) were presented with C-tactile optimal and sub-optimal stroking velocities and rated touch pleasantness on an affective pictorial scale. For both age groups, we found that children preferred C-tactile-targeted stimulation. A comparison with previously published data showed that the children's preference for C-tactile-targeted stimulation was similar to those obtained in adolescents and adults. We speculate that the effect of C-tactile-targeted touch, which is linked with pleasantness, shapes the children's preference for C-tactile over non-C-tactile-targeted stimulation, and that C-tactile afferent stimulation is important for social development.

Details

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalDevelopmental cognitive neuroscience
Volume35
Publication statusPublished - Feb 2019
Peer-reviewedYes

External IDs

PubMedCentral PMC6968959
Scopus 85029474962

Keywords

Keywords

  • Child, Child, Preschool, Female, Humans, Male, Touch Perception/physiology