Odor supported place cell model and goal navigation in rodents

Minija Tamosiunaite, Tomas Kulvicius, James Ainge, Paul Dudchenko, Florentin Woergoetter

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Experiments with rodents demonstrate that visual cues play an important role in the control of hippocampal place cells and spatial navigation. Nevertheless, rats may also rely on auditory, olfactory and somatosensory stimuli for orientation. It is also known that rats can track odors or self-generated scent marks to find a food source. Here we model odor supported place cells by using a simple feed-forward network and analyze the impact of olfactory cues on place cell formation and spatial navigation. The obtained place cells are used to solve a goal navigation task by a novel mechanism based on self-marking by odor patches combined with a Q-learning algorithm. We also analyze the impact of place cell remapping on goal directed behavior when switching between two environments. We emphasize the importance of olfactory cues in place cell formation and show that the utility of environmental and self-generated olfactory cues, together with a mixed navigation strategy, improves goal directed navigation.

Original languageEnglish
Pages (from-to)481-500
Number of pages20
JournalJournal of Computational Neuroscience
Volume25
Early online date23 Apr 2008
DOIs
Publication statusPublished - Dec 2008

Keywords

  • Self-marking navigation
  • Reinforcement learning
  • Q-learning
  • Place cell directionality
  • Remapping

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