Results 21 to 30 of about 365 (207)
Encoding of Head Direction by Hippocampal Place Cells in Bats [PDF]
The Journal of Neuroscience, 2014 Most theories of navigation rely on the concept of a mental map and compass. Hippocampal place cells are neurons thought to be important for representing the mental map; these neurons become active when the animal traverses a specific location in the environment (the “place field”). Head-direction cells are found outside the hippocampus, and encode the
Rubin, A., Yartsev, M. M., Ulanovsky, N.
openaire +2 more sources
Home, head direction stability and grid cell distortion [PDF]
Journal of Neurophysiology, 2019 Abstract The home is a unique location in the life of humans and animals. Numerous behavioral studies investigating homing indicate that many animals maintain an online representation of the direction of the home, a home vector. Here we placed the rat’s home cage in the arena, while recording neurons in the animal’s parasubiculum and ...
Sanguinetti-Scheck, Juan Ignacio +1 more
openaire +4 more sources
Topography of Head Direction Cells in Medial Entorhinal Cortex [PDF]
Current Biology, 2014 Neural circuits in the medial entorhinal cortex (MEC) support translation of the external environment to an internal map of space, with grid and head direction neurons providing metrics for distance and orientation.We show here that head direction cells in MEC are organized topographically.
Giocomo, Lisa M. +5 more
openaire +2 more sources
Head direction cells in a migratory bird prefer north [PDF]
Science Advances, 2022 Animals exhibit remarkable navigation abilities as if they have an internal compass. Head direction (HD) cells encoding the animal’s heading azimuth are found in the brain of several animal species; the HD cell signals are dependent on the vestibular nuclei, where magnetic responsive cells are present in birds.
Susumu Takahashi +4 more
openaire +2 more sources
Video data for the cognitive mapping process of NeuroBayesSLAM system
Data in Brief, 2020 Simultaneous localization and mapping (SLAM), which addresses the problem of constructing a spatial map of an unknown environment while simultaneously determining the mobile robot's position relative to this map, is regarded as one of the key ...
Taiping Zeng, Bailu Si
doaj +1 more source
Place cells, head direction cells, and the learning of landmark stability [PDF]
The Journal of Neuroscience, 1995 Previous studies have shown that hippocampal place fields are controlled by the salient sensory cues in the environment, in that rotation of the cues causes an equal rotation of the place fields. We trained rats to forage for food pellets in a gray cylinder with a single salient directional cue, a white card covering 90 degrees of the cylinder wall ...
J J, Knierim +2 more
openaire +2 more sources
Activity dependent feedback inhibition may maintain head direction signals in mouse presubiculum
Nature Communications, 2017 Head direction is encoded by cells in the presubiculum, but the role of local circuitry in head direction encoding remains unknown. Here the authors demonstrate how a specific inhibitory neuron type, the Martinotti cell, together with excitatory ...
Jean Simonnet +7 more
doaj +1 more source
Planar cell polarity: Heading in the right direction [PDF]
Developmental Dynamics, 2005 AbstractEpithelial cells are patterned not only along their apical–basolateral axis, but also along the plane of the epithelial sheet; the latter event is regulated by the planar cell polarity (PCP) pathway. PCP regulates diverse outputs, such as the distal placement of a hair in all cells of the Drosophila wing, and convergent extension movements ...
openaire +2 more sources
Frontiers in Neural Circuits, 2019 Complex spatial representations in the hippocampal formation and related cortical areas require input from the head direction system. However, a recurrent finding is that behavior apparently supported by these spatial representations does not appear to ...
Christopher M. Dillingham +1 more
doaj +1 more source
NEURAL MODELS OF HEAD-DIRECTION CELLS [PDF]
From Associations to Rules, 2008 After a review of the purpose and biological background of Head Direction Cells, and existing models of them, we introduce an improved neural model that integrates visual flow information with the vestibular inputs found in earlier models. Simulation results using real video inputs are presented to explore and validate the new model, the evolutionary ...
PETER ZEIDMAN, JOHN A. BULLINARIA
openaire +1 more source