Game Theory,

Rationality,

with Embodied glasses.

Sébastien Lerique

OIST — Embodied Cognitive Science Unit

CBS, YouTube

2019

2009

France 24, YouTube

France 24, YouTube

CBS, YouTube

2019

2009

France 24, YouTube

France 24, YouTube

1897

Cognitive Science

Economics

Social Science

Cognitive Science

Economics

Social Science

Game Theory

Rationality 

Embodied

Basic Game Theory

 

Introduction to Perceptual Crossing

 

Approximations needed

 

Game Theoretical Perceptual Crossing

 

Why the effort?

 

Problem versus Mystery

1

 

2

 

3

 

4

 

5

 

6

Basic Game Theory

Discrete strategies

Discrete time

 

Individual-group border

Static strategies

Payoff matrix

A \ B B confesses B stays silent
A confesses 2; 2 4; 1
A stays silent 1; 4 3; 3

Perceptual Crossing: live human interaction

Froese, Iizuka, & Ikegami (2014), Embodied social interaction constitutes social cognition in pairs of humans. Scientific Reports

Auvray, Lenay, & Stewart (2009). Perceptual interactions in a minimalist virtual environment. New Ideas in Psychology

Static object

Avatar

Shadow

Perceptual Crossing: live human interaction

Froese, Iizuka, & Ikegami (2014), Embodied social interaction constitutes social cognition in pairs of humans. Scientific Reports

Auvray, Lenay, & Stewart (2009). Perceptual interactions in a minimalist virtual environment. New Ideas in Psychology

Time

Position in space

Perceptual Crossing: success is a 2-body problem

Time

Position in space

Turn-taking

Perceptual awareness

Kojima, Froese, Oka, Iizuka, & Ikegami (2017). A Sensorimotor Signature of the Transition to Conscious Social Perception. Frontiers in Psychology

Time

Position in space

Approximating Perceptual Crossing to a usable Game

Interaction with static

Interaction with shadow

Interaction with partner

Resources

  • 1 minute exploration time
  • single click

Parallel decisions

  • engage or not
  • click or not

Errors

  • Type I: mistake an object for the partner
  • Type II: mistake partner for an object

Bob

Alice

Building the model

1. Modelling an encounter

Alice comes across Bob

Bob \ Alice Interact less Interact more
Interact less ρLL ρML
Interact more ρLM ρMM

(1-α) ρLL + α ρLM

(1-α) ρML + α ρMM

1/3

1/3

1/3

Lerique (2022). Embodied rationality through game theoretic glasses: an empirical point of contact. Frontiers in Psychology

Alice comes across her static object

Alice comes across Bob's shadow

Alice - Static object

Alice - Bob's shadow

Alice - Bob

Interaction is τ times longer than non-interaction

Final probabilities at constant time cost:

Building the model

2. Individual view

Lerique (2022). Embodied rationality through game theoretic glasses: an empirical point of contact. Frontiers in Psychology

Alice - Static object

Alice -

Bob's shadow

Alice - Bob

u = 0.04

0.1

τ = 3

Bob interacts more

Bob interacts less

Building the model

3. Collective view

Lerique (2022). Embodied rationality through game theoretic glasses: an empirical point of contact. Frontiers in Psychology

Alice - Static object

Alice -

Bob's shadow

Alice - Bob

Alice interacts more

Alice interacts less

Bob interacts less

Bob interacts more

Building the model

3. Collective view

Lerique (2022). Embodied rationality through game theoretic glasses: an empirical point of contact. Frontiers in Psychology

Alice - Static object

Alice -

Bob's shadow

Alice - Bob

Alice interacts more

Alice interacts less

Bob interacts less

Bob interacts more

1

2

4

3

Building the model

3. Collective view

Lerique (2022). Embodied rationality through game theoretic glasses: an empirical point of contact. Frontiers in Psychology

Alice - Static object

Alice -

Bob's shadow

Alice - Bob

1; 3

2; 2

4; 4

3; 1

Assurance Game

Alice interacts more

Alice interacts less

Bob interacts less

Bob interacts more

Enactivism

Game Theory

Team Rationality

2018

Conditional Game Theory

2012, 2016

2018

2007

France 24, YouTube

Gabriel Marcel, Mystery

John Dewey, Situation

Aristotle, Phronesis (practical wisdom)

Noam Chomsky, Mysteries

Hans-Georg Gadamer, Hermeneutical Situation

Problem vs. Mystery

Back to Suicide

Thanks

@wehlutyk

Game Theory, Rationality, with Embodied glasses

By Sébastien Lerique

Game Theory, Rationality, with Embodied glasses

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