Game theory and brain strategies

[2023-01-23] Atelier jeu et cerveau

https://laurentperrinet.github.io/talk/2023-01-23-game-theory-and-the-brain

Game theory and brain strategies

Le jeu du cerveau et du hasard, The Conversation

Aleatoric noise

A Huynh, generating Poisson disk noise

what is noise? it exists at quantum level, but if I were to ask you to draw random points how would it look like?
Aleatoric comes from alea, the Latin word for “dice.” Aleatoric uncertainty is the uncertainty introduced by the randomness of an event. For example, the result of flipping a coin is an aleatoric event.
In your opinion, which of the two is the most random pattern?
from your responses …
the answer is that …

When it comes to true randomness, one of its stranger aspects is that it often behaves differently to people’s expectations. Take the two diagrams below – which one do you think is a random distribution, and which has been deliberately created/adjusted?

randomized dots Only one of these panels shows a random distribution of dots | Source: Bully for Brontosaurus – Stephen Jay Gould

If you said the right panel, you are in good company, as this is most people’s expectation of what randomness looks like. However, this relatively uniform distribution has been adjusted to ensure the dots are evenly spread. In fact, it is the left panel, with its clumps and voids, that reflects a true random distribution. It is also this tendency for randomness to produce clumps and voids that leads to some unintuitive outcomes.

https://theconversation.com/daniel-kahneman-on-noise-the-flaw-in-human-judgement-harder-to-detect-than-cognitive-bias-160525

[Instabilité, Etienne Rey.](https://laurentperrinet.github.io/post/2018-09-09_artorama/) — Instabilité, Etienne Rey.

Sequence prediction


A: 👍👍👍👍🤘👍👍👍👍👍🤘👍👍👍👍🤘👍👍👍👍👍🤘👍🤘👍👍👍👍👍🤘 ?


B: 👍🤘🤘🤘👍👍👍🤘🤘👍🤘👍🤘👍👍🤘👍🤘👍👍👍🤘👍🤘👍🤘🤘🤘👍🤘 ?


C: 👍🤘🤘🤘👍🤘👍👍🤘🤘🤘🤘🤘🤘👍👍🤘👍🤘🤘🤘👍🤘👍🤘🤘🤘🤘🤘👍 ?


D: 🤘🤘🤘🤘🤘👍🤘🤘🤘👍🤘🤘🤘🤘👍🤘👍👍👍👍👍🤘👍🤘👍👍👍👍👍🤘 ?

Sequence prediction

([Pasturel *et al*, 2020](https://laurentperrinet.github.io/publication/pasturel-montagnini-perrinet-20/)). — (Pasturel *et al*, 2020).

Epistemic noise

Representing uncertainty

Visual epistemic uncertainty ([Hugo Ladret](https://theconversation.com/le-jeu-du-cerveau-et-du-hasard-159388)). — Visual epistemic uncertainty (Hugo Ladret).

Representing uncertainty

Visual epistemic uncertainty ([Hugo Ladret](https://laurentperrinet.github.io/publication/ladret-23/)). — Visual epistemic uncertainty (Hugo Ladret).

Conclusion

Game theory and brain strategies

Aleatoric uncertainty ([Pasturel *et al*, 2020](https://laurentperrinet.github.io/publication/pasturel-montagnini-perrinet-20/)). — Aleatoric uncertainty (Pasturel *et al*, 2020).

Game theory and brain strategies

Epistemic uncertainty ([Hugo Ladret](https://theconversation.com/le-jeu-du-cerveau-et-du-hasard-159388)). — Epistemic uncertainty (Hugo Ladret).

Questions?

Ask info @ laurent.perrinet@univ-amu.fr

More info @ web-site.

Game theory and brain strategies

Game theory and brain strategies

Aleatoric noise

Visual illusions : Pareidolia

Visual illusions : Pareidolia

Visual illusions : Pareidolia

Sequence prediction

Sequence prediction

Sequence prediction

Epistemic noise

Representing uncertainty

Representing uncertainty

Conclusion

Game theory and brain strategies

Game theory and brain strategies

Game theory and brain strategies

Questions?