Results 31 to 40 of about 22,462 (202)

Evidence for allocentric boundary and goal direction information in the human entorhinal cortex and subiculum

Nature Communications, 2019
In rodents, cells in the medial entorhinal cortex and subiculum are known to encode the allocentric direction to nearby walls and boundaries. Here, using fMRI the authors show that this is also true in humans, with allocentric boundary direction being ...
J. P. Shine, J. P. Valdés-Herrera, C. Tempelmann, T. Wolbers   +3 more
doaj   +1 more source

Network Neurodegeneration in Alzheimer’s Disease via MRI based Shape Diffeomorphometry and High Field Atlasing

Frontiers in Bioengineering and Biotechnology, 2015
This paper examines MRI analysis of neurodegeneration in Alzheimer’s Disease (AD) in a network of structures within the medial temporal lobe using diffeomorphometry methods coupled with high-field atlasing in which the entorhinal cortex is partitioned ...
Michael I Miller, Michael I Miller, Michael I Miller, J Tilak eRatnanather, J Tilak eRatnanather, J Tilak eRatnanather, Daniel J. Tward, Daniel J. Tward, Daniel J. Tward, Timothy eBrown, David S Lee, David S Lee, Michael eKetcha, Michael eKetcha, Kanami eMori, Mei-Chang eWang, Susumu eMori, Marilyn S Albert, Laurent eYounes, Laurent eYounes, Laurent eYounes   +20 more
doaj   +1 more source

Somatostatin expressing GABAergic interneurons in the medial entorhinal cortex preferentially inhibit layerIII-V pyramidal cells

Communications Biology, 2020
Miklós Kecskés et al. show that somatostatin-expressing interneurons in the medial entorhinal cortex regulate deep-layer pyramidal neurons and impact short-term memory in mice.
Miklós Kecskés, Nóra Henn-Mike, Ágnes Agócs-Laboda, Szilárd Szőcs, Zoltán Petykó, Csaba Varga   +5 more
doaj   +1 more source

Stability of medial entorhinal cortex representations over time [PDF]

Hippocampus, 2018
AbstractDistinct functional cell types in the medial entorhinal cortex (mEC) have been shown to represent different aspects of experiences. To further characterize mEC cell populations, we examined whether spatial representations of neurons in mEC superficial layers depended on the scale of the environment and changed over extended time periods ...
Geoffrey W. Diehl, Olivia J. Hon, Stefan Leutgeb, Jill K. Leutgeb   +3 more
openaire   +2 more sources

Shedding light on stellate cells

eLife, 2018
The relationship between grid cells and two types of neurons found in the medial entorhinal cortex has been clarified.
Andrew S Alexander, Michael E Hasselmo
doaj   +1 more source

Afferent Projections to Area Prostriata of the Mouse

Frontiers in Neuroanatomy, 2020
Area prostriata plays important roles in fast detection and analysis of peripheral visual information. It remains unclear whether the prostriata directly receives and integrates information from other modalities.
Jin-Meng Hu, Chang-Hui Chen, Sheng-Qiang Chen, Song-Lin Ding, Song-Lin Ding   +4 more
doaj   +1 more source

Theta dominates cross-frequency coupling in hippocampal-medial entorhinal circuit during awake-behavior in rats

iScience, 2022
Summary: Hippocampal theta and gamma rhythms are hypothesized to play a role in the physiology of higher cognition. Prior research has reported that an offset in theta cycles between the entorhinal cortex, CA3, and CA1 regions promotes independence of ...
Yuchen Zhou, Alex Sheremet, Jack P. Kennedy, Yu Qin, Nicholas M. DiCola, Sarah D. Lovett, Sara N. Burke, Andrew P. Maurer   +7 more
doaj   +1 more source

Microcircuits of Functionally Identified Neurons in the Rat Medial Entorhinal Cortex [PDF]

Neuron, 2011
Extracellular recordings have elucidated spatial neural representations without identifying underlying microcircuits. We labeled neurons juxtacellularly in medial entorhinal cortex of freely moving rats with a friction-based, pipette-stabilization system. In a linear maze novel to the animals, spatial firing of superficial layer neurons was reminiscent
Burgalossi, Andrea, Herfst, Lucas, von Heimendahl, Moritz, Förste, Henning, Haskic, Kurt, Schmidt, Martin, Brecht, Michael   +6 more
openaire   +2 more sources

Medial temporal pathways for contextual learning: Network c- mapping in rats with or without perirhinal cortex lesions

Brain and Neuroscience Advances, 2017
Background: In the rat brain, context information is thought to engage network interactions between the postrhinal cortex, medial entorhinal cortex, and the hippocampus.
Lisa Kinnavane, Eman Amin, Cristian M. Olarte-Sánchez, John P. Aggleton   +3 more
doaj   +1 more source

Electrical Stimulation of the Lateral Entorhinal Cortex Causes a Frequency-Specific BOLD Response Pattern in the Rat Brain

Frontiers in Neuroscience, 2019
Although deep brain stimulation of the entorhinal cortex has recently shown promise in the treatment of early forms of cognitive decline, the underlying neurophysiological processes remain elusive.
Karla Krautwald, Liv Mahnke, Frank Angenstein, Frank Angenstein, Frank Angenstein   +4 more
doaj   +1 more source