Cardiovascular indicators of disgust
1Department of Psychology, University of Frankfurt am Main, Kettenhofweg 128, D-60054 Frankfurt am Main, Germany. rohrmann@psych.uni-frankfurt.de
Summary
Physiological disgust reactions, like changes in heart rate, vary by disgust type. This study found heart rate decreased only with disease-related disgust, not food-related disgust.
Area of Science:
- Psychology
- Physiology
- Neuroscience
Background:
- Physiological disgust reactions, including bradycardia and parasympathetic activity, are debated.
- Existing research on disgust's cardiovascular and autonomic effects is inconsistent.
- Few studies investigate cardiovascular responses beyond heart rate during disgust.
Purpose of the Study:
- To detail cardiovascular reactions to disgust using impedance cardiography.
- To determine if different disgust content elicits distinct cardiovascular responses.
- To explore domain-specific disgust reactions in physiology.
Main Methods:
- 100 subjects viewed neutral, disease-related (amputation), and food-related (vomiting) film clips.
- Impedance cardiography measured cardiovascular responses.
- Subjective, electrodermal, and cardiovascular data were analyzed using Repeated Measures ANOVAs.
Main Results:
- Significant subjective, electrodermal, and cardiovascular reactions occurred for disgusting stimuli.
- Cardiovascular responses differed between disease-related and food-related disgust.
- Heart rate decrease was observed exclusively with disease-related disgust induction.
Conclusions:
- Disgust elicits domain-specific physiological responses.
- Cardiovascular reactions are not uniform across different disgust categories.
- Findings support a domain-specific organization of disgust reactions.
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