Results 21 to 30 of about 73,004 (270)

Segregation of cortical head direction cell assemblies on alternating theta cycles [PDF]

open access: yes, 2013
High-level cortical systems for spatial navigation, including entorhinal grid cells, critically depend on input from the head direction system. We examined spiking rhythms and modes of synchrony between neurons participating in head direction networks ...
Bogaard, Andrew R.   +3 more
core   +1 more source

What Does the Anatomical Organization of the Entorhinal Cortex Tell Us?

open access: yesNeural Plasticity, 2008
The entorhinal cortex is commonly perceived as a major input and output structure of the hippocampal formation, entertaining the role of the nodal point of cortico-hippocampal circuits. Superficial layers receive convergent cortical information, which is
Cathrin B. Canto   +2 more
doaj   +1 more source

Prenatal development of the human entorhinal cortex

open access: yesJournal of Comparative Neurology, 2022
AbstractLittle is known about the development of the human entorhinal cortex (EC), a major hub in a widespread network for learning and memory, spatial navigation, high‐order processing of object information, multimodal integration, attention and awareness, emotion, motivation, and perception of time.
Goran Šimić   +16 more
openaire   +7 more sources

Dynamics of Hippocampal and Cortical Activation during Consolidation of a Nonspatial Memory [PDF]

open access: yes, 2006
Observations of temporally graded retrograde amnesia after hippocampal damage suggest that the hippocampal region plays a critical, time-limited role in memory consolidation.
Eichenbaum, Howard, Ross, Robert S.
core   +3 more sources

Selective Vulnerability of Neurons in Layer II of the Entorhinal Cortex during Aging and Alzheimer's Disease

open access: yesNeural Plasticity, 2010
All neurons are not created equal. Certain cell populations in specific brain regions are more susceptible to age-related changes that initiate regional and system-level dysfunction.
Alexis M. Stranahan, Mark P. Mattson
doaj   +1 more source

Intrinsic Projections of Layer Vb Neurons to Layers Va, III, and II in the Lateral and Medial Entorhinal Cortex of the Rat

open access: yesCell Reports, 2018
Summary: Layer V of the entorhinal cortex (EC) receives input from the hippocampus and originates main entorhinal outputs. The deep-sublayer Vb, immunopositive for the transcription factor Ctip2, is thought to be the main recipient of hippocampal ...
Shinya Ohara   +7 more
doaj   +1 more source

The topology of connections between rat prefrontal and temporal cortices [PDF]

open access: yes, 2015
Understanding the structural organization of the prefrontal cortex (PFC) is an important step toward determining its functional organization. Here we investigated the organization of PFC using different neuronal tracers.
Bedwell, SA   +4 more
core   +1 more source

Neuronal Plasticity in the Entorhinal Cortex

open access: yesNeural Plasticity, 2008
The entorhinal cortex (EC) is a unique and fascinating structure, constituting a highly parallel interface between phylogenetically old cortex (hippocampus) and higher neocortical areas. The literature related to the EC has increased dramatically in the past 30 years. A simple PubMed search for EC lists around 20–40 articles per year in the early 1980s.
C. Andrew Chapman   +2 more
openaire   +3 more sources

Rat hippocampal CA1 region represents learning-related action and reward events with shorter latency than the lateral entorhinal cortex

open access: yesCommunications Biology, 2023
The hippocampus and entorhinal cortex are deeply involved in learning and memory. However, little is known how ongoing events are processed in the hippocampal-entorhinal circuit.
Shogo Soma   +8 more
doaj   +1 more source

Entorhinal cortex dysfunction in Alzheimer's disease

open access: yesTrends in Neurosciences, 2023
The entorhinal cortex (EC) is the brain region that often exhibits the earliest histological alterations in Alzheimer's disease (AD), including the formation of neurofibrillary tangles and cell death. Recently, brain imaging studies from preclinical AD patients and electrophysiological recordings from AD animal models have shown that impaired neuronal ...
openaire   +4 more sources

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