State-dependent cognition and its relevance to cultural evolution

Area of Science:

• Evolutionary psychology
• Cultural evolution
• Cognitive science

Background:

• Individuals utilize information for navigating their world, with cultural traditions serving as a key human information source.
• Previous research explored the evolutionary advantages of cultural information use and psychological biases shaping traditions, but often overlooked individual state variations.

Purpose of the Study:

• To investigate how individual state variations influence the decision to use cultural versus personal information.
• To examine how differing states affect cognitive biases and priorities, thereby transforming cultural information.
• To propose state variation as a unifying framework linking ecology, cognition, and cultural dynamics.

Main Methods:

• Theoretical modeling integrating individual state variation into evolutionary cultural models.
• Exploration of specific state variables, such as hunger, and their impact on information use and cultural transformation.
• Analysis of how heterogeneity in states can explain variability in cultural traditions and dynamics.

Main Results:

• State variation significantly impacts the relative utility of cultural versus personal information.
• Individuals in different states exhibit distinct cognitive biases and priorities, leading to divergent cultural transformations.
• Hunger serves as a concrete example of a state variable with profound implications for cultural evolution.

Conclusions:

• Individual state variation offers a powerful explanation for the diversity observed in cultural traditions and dynamics across populations.
• This framework integrates ecological factors, individual cognition, and cultural patterns through an evolutionary lens.
• Incorporating state heterogeneity enhances the complexity but also the explanatory power of cultural evolution models.