Related Experiment Video
Updated: Sep 22, 2025
07:10
Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice
Published on: July 1, 2018
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Oscillation-coordinated, noise-resistant information distribution via the subiculum.
Kenji Mizuseki1, Takuma Kitanishi2
1Department of Physiology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Osaka 545-8585, Japan; Department of Physiology, Graduate School of Medicine, Osaka City University, Osaka, Osaka 545-8585, Japan.
Current Opinion in Neurobiology
|May 22, 2022
Summary
The subiculum distributes hippocampal spatial navigation information to the brain. Its neurons provide accurate, noise-resistant data crucial for long-range communication.
Area of Science:
- Neuroscience
- Computational Neuroscience
Background:
- The hippocampus is vital for spatial navigation.
- The subiculum acts as a key output region for the hippocampus, relaying processed information.
Purpose of the Study:
- To investigate the subiculum's role in distributing hippocampal spatial navigation information.
- To characterize the properties of subicular neuronal representations.
Main Methods:
- Analysis of neuronal firing rates and information decoding.
- Examination of information routing to downstream regions.
- Investigation of the role of neural oscillations (theta and sharp-wave ripples).
Main Results:
- Subicular neurons exhibit higher firing rates and more robustly decodable representations of navigation variables (place, speed, trajectory) compared to CA1 neurons.
- Subicular representations are more noise-resistant, facilitating long-range information transfer.
- Information distribution to target areas is selective or uniform, modulated by information type and neural oscillations.
Conclusions:
- The subiculum is critical for efficiently broadcasting accurate, noise-resistant spatial navigation information from the hippocampus to diverse brain regions.
- Neural oscillations play a key role in pathway-specific information routing by the subiculum.
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