Human threat management systems: self-protection and disease avoidance.

Area of Science:

• Evolutionary psychology
• Behavioral biology
• Social neuroscience

Background:

• Human ultrasociality presents unique threats to reproductive fitness.
• Evolved precautionary systems aim to mitigate these threats.
• Self-protection and disease avoidance are key examples of such systems.

Purpose of the Study:

• To review research on self-protection and disease avoidance systems.
• To identify shared features and underlying principles of these evolved systems.
• To propose a general template for understanding domain-specific precautionary systems.

Main Methods:

• Literature review of research on self-protection and disease avoidance.
• Analysis of functional distinctiveness, domain-specificity, and neurobiological substrates.
• Examination of shared characteristics: functional coherence, risk aversion, and flexibility.

Main Results:

• Self-protection and disease avoidance systems are functionally distinct and domain-specific.
• Each system utilizes unique cues, emotions, inferences, and neurobiology.
• Shared features include functional coherence, risk-averse bias, and ecological flexibility.

Conclusions:

• These systems work in concert to reduce fitness costs associated with threats.
• A general template of domain-specific precautionary systems can be applied broadly.
• Understanding these systems is crucial for comprehending human adaptation to social environments.