Results 91 to 100 of about 518,995 (209)

Stable Memory Allocation in the Hippocampus: Fundamental Limits and Neural Realization [PDF]

arXiv, 2016
It is believed that hippocampus functions as a memory allocator in brain, the mechanism of which remains unrevealed. In Valiant's neuroidal model, the hippocampus was described as a randomly connected graph, the computation on which maps input to a set of activated neuroids with stable size.
arxiv  

Family Income Mediates the Effect of Parental Education on Adolescents’ Hippocampus Activation During an N-Back Memory Task

Brain Sciences, 2020
Introduction: Hippocampus, a medial temporal lobe structure, has significant implications in memory formation and learning. Although hippocampus activity is believed to be affected by socioeconomic status (SES), limited knowledge exists on which SES ...
Shervin Assari, Shanika Boyce, Mohsen Bazargan, Cleopatra H. Caldwell   +3 more
doaj   +1 more source

In Situ Real-Time Monitoring of Glutamate and Electrophysiology from Cortex to Hippocampus in Mice Based on a Microelectrode Array

Sensors, 2016
Changes in the structure and function of the hippocampus contribute to epilepsy, schizophrenia and other neurological or mental disorders of the brain.
Xinyi Fan, Yilin Song, Yuanlin Ma, Song Zhang, Guihua Xiao, Lili Yang, Huiren Xu, Dai Zhang, Xinxia Cai   +8 more
doaj   +1 more source

The case for a relationship between human memory, hippocampus and corpus callosum [PDF]

, 1995
Unilateral brain damage which includes the hippocampus leads to memory impairments consistent with hemispheric specialization on the same side. Damage to the corpus callosum, the major connecting pathway between the left and right hemispheres, also ...
Zaidel, Dahlia W.
core  

Astrocytic Ephrin-B1 Regulates Synapse Remodeling Following Traumatic Brain Injury. [PDF]

, 2016
Traumatic brain injury (TBI) can result in tissue alterations distant from the site of the initial injury, which can trigger pathological changes within hippocampal circuits and are thought to contribute to long-term cognitive and neuropsychological ...
Ethell, Iryna M, Garcia, Michael, Koeppen, Jordan, Leish, Joshua, Nikolakopoulou, Angeliki M, Obenaus, Andre   +5 more
core   +3 more sources

Pattern Separation in a Spiking Neural Network of Hippocampus Robust to Imbalanced Excitation/Inhibition [PDF]

arXiv, 2018
Efficient pattern separation in dentate gyrus plays an important role in storing information in the hippocampus. Current knowledge of the structure and function of the hippocampus, entorhinal cortex and dentate gyrus, in pattern separation are incorporated in our model. A three-layer feedforward spiking neural network inspired by the rodent hippocampus
arxiv  

Two Behavioral Tests Allow a Better Correlation Between Cognitive Function and Expression of Synaptic Proteins

Frontiers in Aging Neuroscience, 2018
The molecular substrate of age-associated cognitive decline (AACD) is still elusive. Evidence indicates that AACD is related to synaptic impairment in hippocampus, but different hippocampal regions play different roles, with the dorsal hippocampus (DH ...
Marta Balietti, Giorgia Fattorini, Giorgia Fattorini, Arianna Pugliese, Daniele Marcotulli, Luca Bragina, Luca Bragina, Fiorenzo Conti, Fiorenzo Conti, Fiorenzo Conti   +9 more
doaj   +1 more source

Decoding information in the human hippocampus: a user's guide [PDF]

, 2012
Multi-voxel pattern analysis (MVPA), or 'decoding', of fMRI activity has gained popularity in the neuroimaging community in recent years. MVPA differs from standard fMRI analyses by focusing on whether information relating to specific stimuli is encoded ...
Bakker, Baucom, Bonnici, Bullmore, Burgess, Carr, Chadwick, Chadwick, Chang, Cox, Diana, Drucker, Ekstrom, Eleanor A. Maguire, Epstein, Epstein, Frackowiak, Freeman, Friston, Friston, Graham, Grill-Spector, Grill-Spector, Guyon, Hassabis, Hassabis, Haxby, Haynes, Haynes, Heidi M. Bonnici, Hopfield, Kahnt, Kamitani, Kamitani, Kanwisher, Kay, Kourtzi, Kriegeskorte, Kriegeskorte, Kriegeskorte, Kriegeskorte, Ku, Lee, Leutgeb, Leutgeb, Leutgeb, Maguire, Maguire, Marr, Martin J. Chadwick, Mayes, Mayes, Mayes, Mayes, McClelland, McHugh, Misaki, Mitchell, Morcom, Mumford, Mur, Naselaris, Naselaris, Norman, O'Keefe, O'Keefe, O'Reilly, O'Reilly, Oosterhof, Op de Beeck, Peelen, Pereira, Polyn, Rissman, Rissman, Rodriguez, Scoville, Spiers, Svoboda, Swisher, Treves, Vazdarjanova, Weil, Wills, Winocur, Yarkoni   +85 more
core   +1 more source

Comprehensive study on influence of low dose chronic consumption of silver nanoparticles on cognitive functions and identification of the effect reasons [PDF]

arXiv, 2018
The influence of the daily prolonged administration of silver nanoparticles on cognitive functions of model mammals was studied. The accumulation of silver in whole brain, hippocampus, cerebellum, cortex and residual part of mice brain was investigated by highly precise and representative Neutron Activation Analysis and the histological studies were ...
arxiv  

Phasic locus coeruleus activity enhances trace fear conditioning by increasing dopamine release in the hippocampus

eLife
Locus coeruleus (LC) projections to the hippocampus play a critical role in learning and memory. However, the precise timing of LC-hippocampus communication during learning and which LC-derived neurotransmitters are important for memory formation in the ...
Jacob H Wilmot, Cassiano RAF Diniz, Ana P Crestani, Kyle R Puhger, Jacob Roshgadol, Lin Tian, Brian Joseph Wiltgen   +6 more
doaj   +1 more source