Representation of Three-Dimensional Space in the Hippocampus of Flying Bats

@article{Yartsev2013RepresentationOT,
  title={Representation of Three-Dimensional Space in the Hippocampus of Flying Bats},
  author={Michael M. Yartsev and Nachum Ulanovsky},
  journal={Science},
  year={2013},
  volume={340},
  pages={367 - 372}
}
Bats, Grids, and Oscillations Nearly all animals move around in a three-dimensional (3D) world; however, very little is known about the neural circuitry underlying the representation of 3D space (see the Perspective by Barry and Doeller). Using whole-cell patch recordings in slices of entorhinal cortex, Heys et al. (p. 363) found that bat entorhinal stellate cells must generate grid patterns without theta-frequency oscillatory mechanisms. In another study, Yartsev and Ulanovsky (p. 367) used… Expand
Spatial coding in the hippocampus of flying owls
TLDR
The finding of place cells – neurons that robustly represented the owl’s location during flight, and its flight-direction – as well as neurons that coded the owl's perching position between flights suggests commonalities in spatial coding across a variety of species – including rodents, bats and owls. Expand
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. Expand
The Representation of Three-Dimensional Space in Fish
TLDR
Behavior experiments on pelagic fish are described, which suggest that fish, like mammals, have a higher order representation of space that assembles incoming sensory information into a neural unit that can be used to determine position and heading in three-dimensions. Expand
Multiscale representation of very large environments in the hippocampus of flying bats
TLDR
The study studied bats flying in a 200-m-long tunnel while the activity of hippocampal dorsal CA1 neurons was recorded using a custom wireless-electrophysiology system, finding that place cells recorded in the large environment exhibited a multifield, multiscale representation of space. Expand
Three-dimensional head-direction coding in the bat brain
TLDR
Neural recordings in bats are conducted, and head-direction cells tuned to azimuth, pitch or roll, or to conjunctive combinations of 3D angles are found, in both crawling and flying bats, demonstrating a 3D head- direction mechanism in mammals, which could support navigation in 3D space. Expand
3D Hippocampal Place Field Dynamics in Free-Flying Echolocating Bats
TLDR
Findings are presented, which demonstrate that the animal’s control over echolocation call rate (sensory sampling) influences place field tuning, and motivate future comparative research on hippocampal function in the context of natural sensory-guided behaviors. Expand
Locally ordered representation of 3D space in the entorhinal cortex.
As animals navigate on a two-dimensional surface, neurons in the medial entorhinal cortex (MEC) known as grid cells are activated when the animal passes through multiple locations (firing fields)Expand
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. Expand
Topological mapping of space in bat hippocampus
TLDR
The topological model is used to study $3D$ learning in bats and suggests that, in contrast with relatively slow moving rats, suppressing $\theta$-precession in bats improves the place cells capacity to encode spatial maps, which is consistent with the experimental observations. Expand
A model of topological mapping of space in bat hippocampus
TLDR
The topological approach is used to study the formation of a 3D spatial map in bats and it is demonstrated that, in order to produce accurate maps of the environment, place cell should be organized into functional groups, which can be interpreted as cell assemblies. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 76 REFERENCES
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. Expand
Hippocampal place-cell firing during movement in three-dimensional space.
TLDR
The partial remapping demonstrated that the place cell system was sensitive to the three-dimensional manipulations of the recording apparatus, and was most consistent with the statement that hippocampal neurons can change their "tuning functions" in arbitrary ways when features of the sensory input or behavioral context are altered. Expand
Detecting location-specific neuronal firing rate increases in the hippocampus of freely-moving monkeys
TLDR
During free movement in three dimensions, primate hippocampal complex-spike cells do generate high-frequency, location-specific action potential volleys, since these cells are components of the medial temporal lobe memory system and their uncovered firing pattern may well be involved in the formation of declarative memories on places. Expand
Anisotropic encoding of three-dimensional space by place cells and grid cells
TLDR
It seems that grid cell odometry (and by implication path integration) is impaired or absent in the vertical domain, at least when the rat itself remains horizontal, suggesting that the mammalian encoding of three-dimensional space is anisotropic. Expand
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. Expand
Development of the Hippocampal Cognitive Map in Preweanling Rats
TLDR
The results demonstrate the presence of three neuronal representations of space before extensive experience and show how they develop with age, providing experimental support for Kant's 200-year-old concept of space as an a priori faculty of the mind. Expand
Development of the Spatial Representation System in the Rat
TLDR
It is reported that a rudimentary map of space is already present when 2½-week-old rat pups explore an open environment outside the nest for the first time and provides experimental support for Kant's 200-year-old concept of space as an a priori faculty of the mind. Expand
Place cells, grid cells, and the brain's spatial representation system.
TLDR
How place cells and grid cells may form the basis for quantitative spatiotemporal representation of places, routes, and associated experiences during behavior and in memory is reviewed. Expand
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. Expand
Distinct Representations and Theta Dynamics in Dorsal and Ventral Hippocampus
TLDR
It is hypothesize that the spatial representation in the septo-temporal axis of the hippocampus is progressively decreased, paralleled with a reduction of theta rhythm and an increased representation of nonspatial information. Expand
...
1
2
3
4
5
...