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Cultural evolution needed to complete the Grossmann theory.

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Negative affectivity, while adaptive ancestrally, is maladaptive today. This study explores cultural evolution over 10,000 years to explain this shift, highlighting cultural variation in fearfulness.

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Area of Science:

  • Evolutionary psychology
  • Cultural anthropology
  • Behavioral science

Background:

  • Previous evolutionary analyses suggested fearfulness is adaptive.
  • These analyses did not explain why negative affectivity is maladaptive in modern Western societies.

Purpose of the Study:

  • To document cultural variation in negative affectivity.
  • To explain the maladaptive nature of negative affectivity in contemporary Western societies through cultural evolution.

Main Methods:

  • Documenting implied cultural variation.
  • Considering cultural evolution over the last 10,000 years.

Main Results:

  • Observed cultural variation in negative affectivity.
  • Identified cultural evolutionary processes potentially explaining the shift.

Conclusions:

  • Cultural evolution offers a framework for understanding the maladaptive nature of negative affectivity in modern societies.
  • The study highlights the importance of considering cultural variation and long-term cultural change.