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Related Experiment Video

Updated: Jun 27, 2025

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

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Formalising prestige bias: Differences between models with first-order and second-order cues.

Seiya Nakata¹, Akira Masumi², Genta Toya³

¹International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo, Tokyo, Japan.

Evolutionary Human Sciences

|May 1, 2024

Summary

Prestige bias, imitating high-status individuals, influences cultural evolution. This study models two definitions of prestige, showing distinct impacts on how behaviors spread through populations.

Keywords:

Computational model cultural evolution indirect bias prestige social learning

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Area of Science:

Social learning
Cultural evolution
Behavioral economics

Background:

Human knowledge and behavior spread via social learning.
Prestige bias, imitating prestigious individuals, is key but lacks formal definition.
Existing definitions use first-order (appearance) or second-order (social attention) cues.

Purpose of the Study:

To theoretically examine the effects of prestige bias on cultural evolution.
To formulate and investigate the basic properties of prestige bias.
To compare cultural evolutionary dynamics generated by two distinct prestige bias models.

Main Methods:

Developed computational models of prestige bias.
Incorporated two definitions of prestige: first-order cues and second-order cues.
Compared the cultural evolutionary dynamics produced by each model.

Main Results:

The two formalizations of prestige bias yield different cultural evolutionary dynamics.
Distinguishing between first-order and second-order prestige cues is crucial.
The chosen definition of prestige significantly impacts behavioral transmission and cultural spread.

Conclusions:

Formalizing prestige bias requires careful consideration of cue types (first-order vs. second-order).
Different prestige bias models lead to divergent outcomes in cultural evolution.
This research provides a foundation for understanding prestige bias's role in shaping human societies.