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Modelling Path Integrator Recalibration Using Hippocampal Place Cells

Summary: Modelling Path Integrator Recalibration Using
Hippocampal Place Cells
T. Str¨osslin, R. Chavarriaga, D. Sheynikhovich, and W. Gerstner
´Ecole Polytechnique F´ed´erale de Lausanne (EPFL),
Brain-Mind Institute and School of Computer and Communication Sciences,
CH-1015 Lausanne, Switzerland
thomas.strosslin@a3.epfl.ch, {ricardo.chavarriaga,
denis.sheynikhovich, wulfram.gerstner}@epfl.ch
Abstract. The firing activities of place cells in the rat hippocampus ex-
hibit strong correlations to the animal's location. External (e.g. visual)
as well as internal (proprioceptive and vestibular) sensory information
take part in controlling hippocampal place fields. Previously it has been
observed that when rats shuttle between a movable origin and a fixed
target the hippocampus encodes position in two different frames of ref-
erence. This paper presents a new model of hippocampal place cells that
explains place coding in multiple reference frames by continuous inter-
action between visual and self-motion information. The model is tested
using a simulated mobile robot in a real-world experimental paradigm.
1 Introduction
Place cells in the rat hippocampus are active only when the rat is in a specific


Source: Arleo, Angelo - Laboratory of Neurobiology of Adaptive Processes, Université Pierre-et-Marie-Curie, Paris 6
Gerstner, Wulfram - Laboratory of Computational Neuroscience, Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne


Collections: Biology and Medicine; Computer Technologies and Information Sciences