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Updated: Dec 23, 2025

Using Facial Electromyography to Assess Facial Muscle Reactions to Experienced and Observed Affective Touch in Humans
Published on: March 15, 2019
Touch and social support influence interpersonal synchrony and pain
Marianne C Reddan1,2, Hannah Young2, Julia Falkner2
1Department of Psychology, Stanford University, Stanford, CA 94305, USA.
Supportive touch, like handholding, can reduce pain perception and physiological stress responses. This effect is linked to brain activity and interpersonal synchrony, particularly in women, highlighting the role of social connection in pain management.
Area of Science:
- Psychology
- Neuroscience
- Social Science
Background:
- Interpersonal touch and social support significantly impact physical health, mental well-being, and pain perception.
- The precise neurobiological mechanisms underlying how supportive touch alleviates pain remain incompletely understood.
Purpose of the Study:
- To investigate the effects of different types of social support (passive presence, gentle stroking, handholding) on pain ratings and skin conductance responses (SCRs).
- To explore the neural correlates of pain reduction associated with supportive touch, specifically handholding, using fMRI data.
- To examine the role of interpersonal synchrony and empathy in modulating the analgesic effects of social support.
Main Methods:
- Study 1: Assessed pain ratings and SCRs in individuals receiving different forms of social support from a romantic partner.
- Study 1: Measured SCRs in the supportive partner and analyzed synchronicity between couples' SCRs.
- Study 2: Re-analyzed existing fMRI data to correlate brain activity with individual differences in handholding analgesia effects.
Main Results:
- Social support reduced pain ratings in women but not men; it decreased pain-related SCRs in both sexes.
- Handholding showed the largest effects, reducing SCRs in both the recipient and the supportive partner.
- Increased activity in valuation-encoding frontostriatal brain areas correlated with lower pain ratings, suggesting a modulation of nociceptive signal value.
Conclusions:
- Social support, particularly through physical touch like handholding, can effectively reduce pain perception and physiological stress.
- Interpersonal synchrony and empathy appear to moderate the analgesic effects of social support.
- Findings suggest that social support may reduce pain by altering the perceived value of pain signals in the brain.
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