Value-complexity tradeoff explains mouse navigational learning.

We introduce a novel methodology for describing animal behavior as a tradeoff between value and complexity, using the Morris Water Maze navigation task as a concrete example. We develop a dynamical system model of the Water Maze navigation task, solve its optimal control under varying complexity con...

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Main Authors: Nadav Amir, Reut Suliman-Lavie, Maayan Tal, Sagiv Shifman, Naftali Tishby, Israel Nelken
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-12-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.1008497
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author Nadav Amir
Reut Suliman-Lavie
Maayan Tal
Sagiv Shifman
Naftali Tishby
Israel Nelken
author_facet Nadav Amir
Reut Suliman-Lavie
Maayan Tal
Sagiv Shifman
Naftali Tishby
Israel Nelken
author_sort Nadav Amir
collection DOAJ
description We introduce a novel methodology for describing animal behavior as a tradeoff between value and complexity, using the Morris Water Maze navigation task as a concrete example. We develop a dynamical system model of the Water Maze navigation task, solve its optimal control under varying complexity constraints, and analyze the learning process in terms of the value and complexity of swimming trajectories. The value of a trajectory is related to its energetic cost and is correlated with swimming time. Complexity is a novel learning metric which measures how unlikely is a trajectory to be generated by a naive animal. Our model is analytically tractable, provides good fit to observed behavior and reveals that the learning process is characterized by early value optimization followed by complexity reduction. Furthermore, complexity sensitively characterizes behavioral differences between mouse strains.
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spelling doaj.art-07c20cfd10de4f8bb0447eeac8c112ea2022-12-21T20:06:47ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582020-12-011612e100849710.1371/journal.pcbi.1008497Value-complexity tradeoff explains mouse navigational learning.Nadav AmirReut Suliman-LavieMaayan TalSagiv ShifmanNaftali TishbyIsrael NelkenWe introduce a novel methodology for describing animal behavior as a tradeoff between value and complexity, using the Morris Water Maze navigation task as a concrete example. We develop a dynamical system model of the Water Maze navigation task, solve its optimal control under varying complexity constraints, and analyze the learning process in terms of the value and complexity of swimming trajectories. The value of a trajectory is related to its energetic cost and is correlated with swimming time. Complexity is a novel learning metric which measures how unlikely is a trajectory to be generated by a naive animal. Our model is analytically tractable, provides good fit to observed behavior and reveals that the learning process is characterized by early value optimization followed by complexity reduction. Furthermore, complexity sensitively characterizes behavioral differences between mouse strains.https://doi.org/10.1371/journal.pcbi.1008497
spellingShingle Nadav Amir
Reut Suliman-Lavie
Maayan Tal
Sagiv Shifman
Naftali Tishby
Israel Nelken
Value-complexity tradeoff explains mouse navigational learning.
PLoS Computational Biology
title Value-complexity tradeoff explains mouse navigational learning.
title_full Value-complexity tradeoff explains mouse navigational learning.
title_fullStr Value-complexity tradeoff explains mouse navigational learning.
title_full_unstemmed Value-complexity tradeoff explains mouse navigational learning.
title_short Value-complexity tradeoff explains mouse navigational learning.
title_sort value complexity tradeoff explains mouse navigational learning
url https://doi.org/10.1371/journal.pcbi.1008497
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