3D Hippocampal Place Field Dynamics in Free-Flying Echolocating Bats

@article{Wohlgemuth20183DHP,
  title={3D Hippocampal Place Field Dynamics in Free-Flying Echolocating Bats},
  author={Melville J Wohlgemuth and Chao Yu and Cynthia F. Moss},
  journal={Frontiers in Cellular Neuroscience},
  year={2018},
  volume={12}
}
A large body of laboratory research has investigated the process by which environmental cues are acquired and used for spatial navigation in rodents; however, the key to differentiating between species specializations and general principles lies in comparative research. Rodent research has focused on a class of neurons in the hippocampus implicated in the representation of allocentric space – termed place cells – and the process by which these representations form. One class of models of… 
Nonlocal spatiotemporal representation in the hippocampus of freely flying bats
TLDR
It is demonstrated that neural activity in area CA1 predominantly encodes nonlocal spatial information up to meters away from the bat’s present position, which may provide a key mechanism for navigating along self-selected and remembered paths.
The place-cell representation of volumetric space in rats
TLDR
Record place cells in rats climbing through a 3D environment and report that they represent this space with 3D fields that are elongated along the axes of the environment and encode the vertical dimension less accurately.
How the evolution of air breathing shaped hippocampal function
  • L. Jacobs
  • Medicine
    Philosophical Transactions of the Royal Society B
  • 2021
TLDR
In conclusion, models of hippocampal function that are divorced from considerations of ecology and evolution fall short of explaining hippocampal diversity across mammals and even hippocampusal function in humans.
The fully automated bat (FAB) flight room: A human-free environment for studying navigation in flying bats and its initial application to the retrosplenial cortex
TLDR
A novel experimental approach is described for studying spatial navigation in freely flying bats without potential experimental biases that can be easily introduced by active physical involvement and presence of experimenters in the room.
The Hippocampus Maps Concept Space, Not Feature Space
TLDR
This work provides the first unambiguous evidence for a hippocampal representation of a conceptual space compared with a general feature-based space, by showing that the hippocampal distance signal selectively reflects the mapping of specifically conceptually relevant rather than of all feature dimensions.
The place-cell representation of volumetric space in rats
TLDR
This work wirelessly recorded place cells in rats at they explored a cubic lattice climbing frame which could be aligned or tilted with respect to gravity, and demonstrated that surface dwelling animals also represent 3D space.
Neural oscillations in the fronto-striatal network predict vocal output in bats
TLDR
Overall, this study indicates that fronto-striatal oscillations could provide a neural correlate for vocal control in bats.
NeuroSLAM: a brain-inspired SLAM system for 3D environments
TLDR
A novel neuro-inspired 4DoF (degrees of freedom) SLAM system named NeuroSLAM is presented, based upon computational models of 3D grid cells and multilayered head direction cells, integrated with a vision system that provides external visual cues and self-motion cues.
Irregular distribution of grid cell firing fields in rats exploring a 3D volumetric space
TLDR
It is reported that, in rats foraging in a cubic lattice, grid cells maintained normal temporal firing characteristics and produced spatially stable firing fields, and grids may not need to be regular to support spatial computations.
Grid cell firing fields in a volumetric space
TLDR
It is reported that in rats exploring a cubic lattice, grid cells were spatially stable and maintained normal directional modulation, theta modulation and spike dynamics, and may not need to be regular to support spatial computations.
...
1
2
...

References

SHOWING 1-10 OF 93 REFERENCES
Hippocampal cellular and network activity in freely moving echolocating bats
TLDR
The first hippocampal recordings from echolocating bats are reported, which showed place cells very similar to those of rodents, and support the hypothesis that theta oscillation in the mammalian hippocampus is involved in sequence learning and hence, theta power should increase with sensory-input rate.
Dynamics of hippocampal spatial representation in echolocating bats
TLDR
The results suggest that spatial representation in mammalian hippocampus can be very rapidly modulated by external sensory and behavioral events.
Dynamic representation of 3D auditory space in the midbrain of the free-flying echolocating bat
TLDR
It is shown for the first time that sensory neurons in the midbrain superior colliculus of the free-flying echolocating bat encode 3D egocentric space, and that the bat’s inspection of objects in the physical environment sharpens tuning of single neurons, and shifts peak responses to represent closer distances.
Representation of Three-Dimensional Space in the Hippocampus of Flying Bats
TLDR
Recorded single neurons in freely flying bats, using a wireless neural-telemetry system, and studied how hippocampal place cells encode 3D volumetric space during flight suggest that the bat hippocampus represents 3Dvolumed space by a uniform and nearly isotropic rate code.
Vectorial representation of spatial goals in the hippocampus of bats
TLDR
A group of neurons in the brains of bats that are tuned to goal direction and distance relative to the bat's current position as it flies toward its goal are described, suggesting a previously unrecognized neuronal mechanism for goal-directed navigation.
Cellular networks underlying human spatial navigation
TLDR
Evidence is presented for a neural code of human spatial navigation based on cells that respond at specific spatial locations and cells thatrespond to views of landmarks that are present primarily in the hippocampus and the parahippocampal region.
Hippocampal global remapping for different sensory modalities in flying bats
TLDR
Sensory-based global remapping in a mammal is shown, suggesting that the hippocampus does not contain an abstract spatial map but rather a 'cognitive atlas', with multiple maps for different sensory modalities.
Grid cells without theta oscillations in the entorhinal cortex of bats
TLDR
This work found grid cells in bat medial entorhinal cortex that shared remarkable similarities to rodent grid cells, and existed in the absence of continuous theta-band oscillations, and with almost no theta modulation of grid-cell spiking, which are essential prerequisites of the oscillatory interference models.
Human Hippocampal and Parahippocampal Theta during Goal-Directed Spatial Navigation Predicts Performance on a Virtual Morris Water Maze
TLDR
The findings suggest human spatial learning is dependent on hippocampal and parahippocampal theta oscillations, extending to humans a significant body of research demonstrating such a pivotal role for hippocampal theTA in animal navigation.
Spatial representation in the hippocampal formation: a history
TLDR
It is now possible to investigate how specialized cell types of hippocampal–entorhinal systems work together, and spatial mapping may become one of the first cognitive functions to be understood in mechanistic detail.
...
1
2
3
4
5
...