Results 71 to 80 of about 40,545 (235)

Differential role of entorhinal and hippocampal nerve growth factor in short- and long-term memory modulation

Brazilian Journal of Medical and Biological Research, 2005
We studied the effects of infusion of nerve growth factor (NGF) into the hippocampus and entorhinal cortex of male Wistar rats (250-300 g, N = 11-13 per group) on inhibitory avoidance retention.
Walz R., Roesler R., Reinke A., Martins M.R., Quevedo J., Izquierdo I.   +5 more
doaj  

CORRELATION BETWEEN MRI-BASED BRAIN VOLUME CHANGES AND COGNITIVE DECLINE IN PATIENTS WITH MILD COGNITIVE IMPAIRMENT: A PROSPECTIVE OBSERVATIONAL STUDY.

Student's Journal of Health Research Africa
Background Mild Cognitive Impairment (MCI) is an intermediate stage between normal cognitive aging and dementia, characterized by subtle cognitive decline.
Karishma Khushalrao Surpam
doaj   +1 more source

Convergent Projections from Perirhinal and Postrhinal Cortices Suggest a Multisensory Nature of Lateral, but Not Medial, Entorhinal Cortex

Cell Reports, 2019
Summary: The current model of the organization of the medial temporal lobe (MTL) episodic memory system assumes that two functionally different “where” and “what” pathways enter MTL as parallel parahippocampal cortex (PHC)-medial entorhinal cortex (MEC ...
Thanh P. Doan, Maria J. Lagartos-Donate, Eirik S. Nilssen, Shinya Ohara, Menno P. Witter   +4 more
doaj   +1 more source

Brain‐Mimetic Mapless Navigation Framework Integrating Visual Streams and Entorhinal‐Hippocampal‐Prefrontal Circuits

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Efficient autonomous navigation in complex and unstructured environments without pre‐existing maps remains a significant challenge for mobile robotics. Drawing inspiration from rodent neural architectures, this study proposes a brain‐mimetic mapless navigation framework for mobile robots.
Yishen Liao, Naigong Yu, Hejie Yu, Shufei Fu   +3 more
wiley   +1 more source

Combinatorial expression of Lef1, Lhx2, Lhx5, Lhx9, Lmo3, Lmo4, and Prox1 helps to identify comparable subdivisions in the developing hippocampal formation of mouse and chicken

Frontiers in Neuroanatomy, 2014
We carried out a study of the expression patterns of seven developmental regulatory genes (Lef1, Lhx2, Lhx9, Lhx5, Lmo3, Lmo4, and Prox1), in combination with topological position, to identify the medial pallial derivatives, define its major subdivisions,
Antonio eAbellán, Ester eDesfilis, Loreta eMedina   +2 more
doaj   +1 more source

Associations of cannabis use, tobacco use and co‐use with brain volume: A systematic review and meta‐analysis

Addiction, EarlyView.
Abstract Background and aims Cannabis is the most widely used illicit drug worldwide and is often co‐used with tobacco, the leading cause of preventable death. Although cannabis and tobacco have distinct neurobiological actions, their associations with brain volumes are unclear.
Katherine Sawyer, Tom P. Freeman, Martine Skumlien, Esther Walton, Thomas Lancaster, Jorien L. Treur, Valentina Lorenzetti, Anna K. M. Blackwell, Chloe Burke, Richie J. Carr, Constantinos Constantinides, Maisie Cox, Sarah Dance, Shadi Daryan, Sorcha Hamilton, Tom Jenkins, Gemma M. J. Taylor   +16 more
wiley   +1 more source

Postsynaptic Signals Mediating Induction of Long-Term Synaptic Depression in the Entorhinal Cortex

Neural Plasticity, 2008
The entorhinal cortex receives a large projection from the piriform cortex, and synaptic plasticity in this pathway may affect olfactory processing. In vitro whole cell recordings have been used here to investigate postsynaptic signalling mechanisms that
Saïd Kourrich, Stephen D. Glasgow, Douglas A. Caruana, C. Andrew Chapman   +3 more
doaj   +1 more source

Structural development and dorsoventral maturation of the medial entorhinal cortex

eLife, 2016
We investigated the structural development of superficial-layers of medial entorhinal cortex and parasubiculum in rats. The grid-layout and cholinergic-innervation of calbindin-positive pyramidal-cells in layer-2 emerged around birth while reelin ...
Saikat Ray, Michael Brecht
doaj   +1 more source

Human brain matters: Navigating the neuropathology of COVID‐19

Brain Pathology, EarlyView.
Severe COVID‐19 is associated with vascular dysregulation and chronic neuroinflammation, leading to axonal injury and neurodegeneration. In long COVID or PASC, persistent alterations in neuroimaging and biofluid biomarkers reflect ongoing neuronal damage and neuroinflammation, contributing to long‐term neurological symptoms including fatigue, cognitive
Juliana M. Nieuwland, Angelica Scaramuzza, Marianna Bugiani, Wilma D. J. van de Berg, Jinte Middeldorp   +4 more
wiley   +1 more source

Rate maintenance and resonance in the entorhinal cortex

European Journal of Neuroscience, 2010
AbstractThroughout the brain, neurons encode information in fundamental units of spikes. Each spike represents the combined thresholding of synaptic inputs and intrinsic neuronal dynamics. Here, we address a basic question of spike train formation: how do perithreshold synaptic inputs perturb the output of a spiking neuron?
Haas J. S., Kreuz T., Torcini A., Politi A., Abarbanel H. D. I.   +4 more
openaire   +3 more sources