Definition
Disgust is an evolved emotional response that originally protected against pathogens and toxic substances, and later extended to moral and social domains.
Why it matters
Understanding disgust’s evolutionary origins clarifies its rigidity, its social uses, and its role in prejudice and moral judgment.
The Science
Disgust involves specific facial expression, autonomic pattern (parasympathetic dominance, nausea), and insular activation. Its extension to social and moral domains is well documented — and often exploited politically.
The NSI Perspective
NSI treats disgust as a primitive protective system that deserves examination when it operates outside its original domain.
Clinical Implications
OCD, contamination fears, and some moral rigidity involve dysregulated disgust systems.
Practical Application
When disgust is loudest, ask what it is protecting. Sometimes the protection is warranted; often, on examination, it is not.
References
- 1.Rozin P, Haidt J, McCauley CR. Disgust. In: Handbook of Emotions. Guilford; 2008.