Finite Scale of Spatial Representation in the Hippocampus
Copyright policy )Finite Scale of Spatial Representation in the Hippocampus
To determine how spatial scale is represented in the pyramidal cell population of the hippocampus, we recorded neural activity at multiple longitudinal levels of this brain area while rats ran back and forth on an 18-meter-long linear track. CA3 cells had well-defined place fields at all levels. The scale of representation increased almost linearly from <1 meter at the dorsal pole to ∼10 meters at the ventral pole. The results suggest that the place-cell map includes the entire hippocampus and that environments are represented in the hippocampus at a topographically graded but finite continuum of scales.
- Amsterdam UMC, location VUmc Netherlands
- Norwegian University of Science and Technology Norway
- Amsterdam UMC Netherlands
Male, Brain Mapping, Pyramidal Cells, Action Potentials, Spatial Behavior, Hippocampus, Electrodes, Implanted, Rats, Space Perception, Linear Models, Animals, Learning, Rats, Long-Evans, Theta Rhythm, Algorithms
Male, Brain Mapping, Pyramidal Cells, Action Potentials, Spatial Behavior, Hippocampus, Electrodes, Implanted, Rats, Space Perception, Linear Models, Animals, Learning, Rats, Long-Evans, Theta Rhythm, Algorithms
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