Journal
PLOS BIOLOGY
Volume 15, Issue 2, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pbio.2001045
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Funding
- LABEX-CORTEX of the University of Lyon [ANR-11-LABEX-0042]
- Marie Curie Reintegration Grant [MIRG-CT-21939]
- Centre National de la Recherche Scientifique
- Agence Nationale pour la Recherche [ANR-BLANC-2008- Brain-GPS]
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To elucidate how gaze informs the construction of mental space during wayfinding in visual species like primates, we jointly examined navigation behavior, visual exploration, and hippocampal activity as macaque monkeys searched a virtual reality maze for a reward. Cells sensitive to place also responded to one or more variables like head direction, point of gaze, or task context. Many cells fired at the sight (and in anticipation) of a single landmark in a viewpoint-or task-dependent manner, simultaneously encoding the animal's logical situation within a set of actions leading to the goal. Overall, hippocampal activity was best fit by a fine-grained state space comprising current position, view, and action contexts. Our findings indicate that counterparts of rodent place cells in primates embody multidimensional, task-situated knowledge pertaining to the target of gaze, therein supporting self-awareness in the construction of space.
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