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Heart rate variability is enhanced by long-lasting pleasant touch at CT-optimized velocity

Artikel i vetenskaplig tidskrift
Författare Chantal Triscoli
Ilona Croy
Susann Steudte-Schmiedgen
Håkan Olausson
Uta Sailer
Publicerad i Biological Psychology
Volym 128
Sidor 71–81
ISSN 0301-0511
Publiceringsår 2017
Publicerad vid Psykologiska institutionen
Sidor 71–81
Språk en
Ämnesord Pleasant touch; CT-optimal touch; Stress response; Heart rate variability; SDNN; Salivary cortisol
Ämneskategorier Psykologi

Sammanfattning

The present study explores whether long-lasting pleasant touch has positive effects on the stress response, reward sensitivity, mood, and interoceptive awareness. 40 participants received either 35 min of brush stroking targeting C-tactile fibres (CT) or vibration on the forearm, and rated pleasantness and intensity. Prior and after, stress response (cortisol and heart rate variability), reward sensitivity, mood and interoceptive awareness were measured. Pleasantness decreased over time for both groups, with brush stroking being perceived as more pleasant and intense than vibration. Heart rate variability (SDNN) increased for brush stroking only, and was related to the higher pleasantness and intensity. No significant effect of CT-optimal touch was observed on any of the other measures. The beneficial effect of pleasant touch on heart rate variability suggests a neuronal link between CT-fibre stimulation and autonomic regulation, and highlights the potential of long-lasting touch to improve the physiological response

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