Synchrony in the periphery: inter-subject correlation of physiological responses during live music concerts.
Level 4 - case-series / case-control
Observational physiological cohort study without a non-exposed control group
PubMed 34789746 · doi:10.1038/s41598-021-00492-3
What was done
Audience members had their cardiorespiratory, skin conductance, and facial muscle responses recorded during live string quintet concerts featuring full-length works from Viennese Classical, Contemporary, and Romantic styles. The concert program was repeated across three consecutive days with different audiences. The authors computed inter-subject correlation (ISC) of physiological measures, modeled high physiological synchrony using logistic regressions against acoustic features and subjective ratings, and mapped synchrony events to music-theoretical structural markers.
What was found
The abstract reports no exact numerical data, test statistics, or effect sizes. Inter-subject physiological correlation aligned with physiological arousal signatures. Logistic regression indicated that high physiological synchrony was consistently predicted by faster tempi (which correlated with higher arousal and engagement ratings) in familiar styles (Classical and Romantic) but not in the unfamiliar Contemporary style. Heightened synchrony across all three audience cohorts co-occurred at specific structural musical events, specifically transitional passages, boundaries, and phrase repetitions.
Why it matters
This study provides naturalistic evidence that live music coordinates autonomic and somatic physiology across audience members, identifying tempo, structural transitions, and stylistic familiarity as key determinants.
Limits
The abstract omits participant numbers, demographic characteristics, and quantitative metrics (such as regression coefficients, odds ratios, or variance explained). The naturalistic concert context entails unmeasured environmental and visual confounders, and the design cannot isolate whether synchrony arises purely from acoustic properties or shared social presence.