Zygosity and Autonomic Responses to Social Exclusion: Biofeedback Insights
Overview
This study explored autonomic responses to social exclusion in twins with and without symptoms of functional gastrointestinal disorders (FGID) and eating disorders (ED). No significant differences were found between symptom groups.
Background
Functional gastrointestinal disorders and eating disorders frequently co-occur and can lead to altered autonomic nervous system responses to stress. This study utilized a twin design to investigate these dynamics in the context of social exclusion.
Data Highlights
35 monozygotic and dizygotic twin pairs participated in the study, with physiological measures taken during a controlled social exclusion task.
Key Findings
Significant changes in skin conductance, skin temperature, heart rate variability, and subjective stress ratings were observed across experimental phases.
No significant differences emerged between the symptom groups for FGID and ED.
Zygosity-related interactions were noted for selected heart rate variability indices.
Non-shared environmental factors may contribute substantially to variability in physiological stress response.
Genetic influences were observed for subjective stress ratings and selected heart rate variability indices.
Clinical Implications
The findings indicate that social exclusion can induce autonomic and subjective stress responses in individuals regardless of symptom status.
Conclusion
Further research with larger cohorts is needed to validate these preliminary findings.
