Results 51 to 60 of about 7,186,907 (267)

During hippocampal inactivation, grid cells maintain synchrony, even when the grid pattern is lost

eLife, 2019
The grid cell network in the medial entorhinal cortex (MEC) has been subject to thorough testing and analysis, and many theories for their formation have been suggested.
Noam Almog, Gilad Tocker, Tora Bonnevie, Edvard I Moser, May-Britt Moser, Dori Derdikman   +5 more
doaj   +1 more source

Behavioral Deficits and Axonal Injury Persistence after Rotational Head Injury Are Direction Dependent [PDF]

, 2013
Pigs continue to grow in importance as a tool in neuroscience. However, behavioral tests that have been validated in the rodent model do not translate well to pigs because of their very different responses to behavioral stimuli.
Propert, Kathleen J, Sullivan, Sarah, Friess, Stuart H, Smith, Colin; id_orcid, Margulies, Susan S, Rapp, Paul E, Ralston, Jill   +6 more
core   +1 more source

Path integration of head direction: updating a packet of neural activity at the correct speed using axonal conduction delays. [PDF]

PLoS ONE, 2013
The head direction cell system is capable of accurately updating its current representation of head direction in the absence of visual input. This is known as the path integration of head direction.
Daniel Walters, Simon Stringer, Edmund Rolls   +2 more
doaj   +1 more source

Optimal Population Codes for Space: Grid Cells Outperform Place Cells [PDF]

, 2012
Rodents use two distinct neuronal coordinate systems to estimate their position: place fields in the hippocampus and grid fields in the entorhinal cortex.
Stemmler, Martin B., Stemmler, Martin, Herz, Andreas V. M., Mathis, Alexander   +3 more
core   +1 more source

The vestibular contribution to the head direction cells signal and navigation

Frontiers in Integrative Neuroscience, 2014
Spatial learning and navigation depend on neural representations of location and direction within the environment. These representations, encoded by place cells and head direction cells, respectively, are dominantly controlled by visual cues, but ...
Jeffrey S Taube, Ryan M. Yoder
doaj   +1 more source

Head direction cells and the neurophysiological basis for a sense of direction

Progress in Neurobiology, 1998
Animals require two types of fundamental information for accurate navigation: location and directional heading. Current theories hypothesize that animals maintain a neural representation, or cognitive map, of external space in the brain. Whereas cells in the rat hippocampus and parahippocampal regions encode information about location, a second type of
openaire   +2 more sources

How the cerebellum may monitor sensory information for spatial representation

Frontiers in Systems Neuroscience, 2014
The cerebellum has already been shown to participate in the navigation function. We propose here that this structure is involved in maintaining a sense of direction and location during self-motion by monitoring sensory information and interacting with ...
Laure eRondi-Reig, Laure eRondi-Reig, Laure eRondi-Reig, Anne-Lise eParadis, Anne-Lise eParadis, Anne-Lise eParadis, Julie M Lefort, Julie M Lefort, Julie M Lefort, Benedicte M Babayan, Benedicte M Babayan, Benedicte M Babayan, Christine eTobin, Christine eTobin, Christine eTobin   +14 more
doaj   +1 more source

Lesions of the head direction cell system increase hippocampal place field repetition [PDF]

, 2017
A central tenet of systems neuroscience is that the mammalian hippocampus provides a cognitive map of the environment. This view is supported by the finding of place cells, neurons whose firing is tuned to specific locations in an animal’s ...
Grieves, RM, Rachael Stentiford, Dudchenko, Paul, Bett, D, Stentiford, Rachael, Dudchenko, Paul A, Dudchenko, Paul A., Wood, Emma R, Emma R. Wood, Bett, David, Grieves, Roddy M., Wood, Emma R., Harland, B, Wood, ER, Grieves, Roddy M, Dudchenko, PA, Harland, Bruce, Grieves, Roderick, Stentiford, R, Paul A. Dudchenko, Bruce Harland, Roddy M. Grieves, David Bett   +22 more
core   +1 more source

Navigation Patterns and Scent Marking: Underappreciated Contributors to Hippocampal and Entorhinal Spatial Representations?

Frontiers in Behavioral Neuroscience, 2018
According to the currently prevailing theory, hippocampal formation constructs and maintains cognitive spatial maps. Most of the experimental evidence for this theory comes from the studies on navigation in laboratory rats and mice, typically male ...
Mikhail A. Lebedev, Mikhail A. Lebedev, Alexey Pimashkin, Alexei Ossadtchi   +3 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source