1–26 Jul 2019
Nordita, Stockholm
Europe/Stockholm timezone

Optimal Memory Strategies in the adaptive immune system

26 Jul 2019, 11:00
30m
FB52 (Nordita, Stockholm)

FB52

Nordita, Stockholm

Speaker

Oskar Schnaack

Description

The adaptive immune system in vertebrates mounts a specific response against a multitude of distinct pathogens by generating highly diverse immune (B- and T-cell) receptors. After battling with an infection, the immune system keeps a memory of its effective immune receptors as a token to act quicker in future encounters. Our goal is to understand the statistical principles of such memory formation through modeling of the immune response as a decision-making process [1]. We relate the adaptation time of an antibody resembling B-cell receptor to a temperature-like quantity that sets the limit on the decision-making prior. Based on the concept of out-of-equilibrium decision-making [2] we derive equilibrium and out-of-equilibrium memory strategies and analyze their utility. [1] Pedro A. Ortega and Daniel A. Braun. Thermodynamics as a theory of decision-making with information-processing costs. Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences [2] Jordi Grau-Moya et al. Non-equilibrium relations for bounded rational decision-making in changing environments. Entropy

Primary author

Oskar Schnaack

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