Complementarity theory: why human social capacities evolved to require cultural complements.

Area of Science:

• Evolutionary Psychology
• Cultural Anthropology
• Social Psychology

Background:

• Cultural diversity arises from complex interactions between evolved human psychology and cultural learning.
• Social coordination is essential for human survival, fitness, and well-being.
• Existing theories may not fully capture the interplay between innate predispositions and cultural specifics.

Purpose of the Study:

• Introduce Complementarity Theory to explain the psychological underpinnings of cultural diversity.
• Detail the evolutionary processes and psychological mechanisms driving culture-specific social coordination.
• Illustrate how evolved proclivities and cultural paradigms co-adapt to shape social interactions.

Main Methods:

• Theoretical framework development based on evolutionary principles.
• Analysis of psychological mechanisms underlying social coordination.
• Examination of cultural variability in social coordination devices (e.g., language, religion, kinship).

Main Results:

• Complementarity Theory posits that evolved social proclivities and cultural paradigms are co-adapted and mutually dependent.
• These co-adapted elements generate culture-specific structures for meaningful social coordination.
• The theory accounts for the variability of social coordination devices across cultures.

Conclusions:

• Human social coordination, vital for fitness, is achieved through the synergistic interaction of evolved psychological traits and cultural paradigms.
• Complementarity Theory offers a unified framework for understanding the psychology of cultural diversity.
• This co-evolutionary perspective highlights the deep integration of innate human tendencies and cultural influences.