Results 31 to 40 of about 600,635 (289)

The Hippocampus

open access: yesWikiJournal of Medicine, 2017
The hippocampus (named after its resemblance to the seahorse, from the Greek ἱππόκαμπος, "seahorse" from ἵππος hippos, "horse" and κάμπος kampos, "sea monster") is a major component of the brains of humans and other vertebrates.
Marion Wright
doaj   +1 more source

Genetic Differences in Dorsal Hippocampus Acetylcholinesterase Activity Predict Contextual Fear Learning Across Inbred Mouse Strains

open access: yesFrontiers in Psychiatry, 2021
Learning is a critical behavioral process that is influenced by many neurobiological systems. We and others have reported that acetylcholinergic signaling plays a vital role in learning capabilities, and it is especially important for contextual fear ...
Sean M. Mooney-Leber   +7 more
doaj   +1 more source

Sex differences in gray matter volume of the right anterior hippocampus explain sex differences in three-dimensional mental rotation

open access: yesFrontiers in Human Neuroscience, 2016
Behavioral studies have reported that males perform better than females in 3-dimensional (3D) mental rotation. Given the important role of the hippocampus in spatial processing, the present study investigated whether structural differences in the ...
Wei Wei   +6 more
doaj   +1 more source

Spatial encoding in primate hippocampus during free navigation. [PDF]

open access: yes, 2019
The hippocampus comprises two neural signals-place cells and θ oscillations-that contribute to facets of spatial navigation. Although their complementary relationship has been well established in rodents, their respective contributions in the primate ...
Bussell, Robert   +6 more
core   +1 more source

Differential medial temporal lobe morphometric predictors of item- and relational-encoded memories in healthy individuals and in individuals with mild cognitive impairment and Alzheimer's disease. [PDF]

open access: yes, 2017
INTRODUCTION:Episodic memory processes are supported by different subregions of the medial temporal lobe (MTL). In contrast to a unitary model of memory recognition supported solely by the hippocampus, a current model suggests that item encoding engages ...
Conejero-Goldberg, Concepcion   +7 more
core   +1 more source

Altered muscarinic and nicotinic receptor densities in cortical and subcortical brain regions in Parkinson's disease [PDF]

open access: yes, 1993
Muscarinic and nicotinic cholinergic receptors and choline acetyltransferase activity were studied in postmortem brain tissue from patients with histopathologically confirmed Parkinson's disease and matched control subjects.
Jenner, P.   +3 more
core   +1 more source

Dietary magnesium deficiency induces the expression of neuroinflammation‐related genes in mouse brain

open access: yesNeuropsychopharmacology Reports, 2021
Aims Dietary Mg2+ deficiency (MgD) impairs hippocampus‐dependent memory in mice; however, the molecular mechanisms underlying MgD‐induced memory impairments are unclear.
Ryuhei Tsuji   +3 more
doaj   +1 more source

Dorsal and Ventral Hippocampus Differentiate in Functional Pathways and Differentially Associate with Neurological Disease-Related Genes during Postnatal Development

open access: yesFrontiers in Molecular Neuroscience, 2017
The dorsal and ventral regions of the hippocampus are important in cognitive and emotional processing, respectively. Various approaches have revealed the differential molecular and structural characteristics, and functional roles of the hippocampus ...
A-Ram Lee   +8 more
doaj   +1 more source

The role of lipid metabolism in neuronal senescence

open access: yesFEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari   +2 more
wiley   +1 more source

Symptomatic remission and hippocampus volume in schizophrenia

open access: yesPsychiatry and Clinical Psychopharmacology, 2021
Objective: A recent meta-analysis of brain structure studies in schizophrenia has demonstrated that the most commonly reported deficit in brain regions was in left medial temporal lobe, which contains the hippocampus.
Ping Tsun Chang   +2 more
doaj  

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