Results 31 to 40 of about 523,769 (311)

N6-methyladenosine participates in mouse hippocampus neurodegeneration via PD-1/PD-L1 pathway

open access: yesFrontiers in Neuroscience, 2023
Developmental abnormalities and hippocampal aging leads to alteration in cognition. In the brain, N6-methyladenosine (m6A) is a common and reversible mRNA alteration that is essential for both neurodevelopment and neurodegeneration. However, its function
Wen Hu   +6 more
doaj   +1 more source

Memory, Visual Discrimination Performance, and the Human Hippocampus

open access: yesJournal of Neuroscience, 2011
We evaluated recent proposals that the hippocampus supports certain kinds of visual discrimination performance, for example, when spatial processing is required and the stimuli have a high degree of feature overlap.
Soyun Kim   +5 more
semanticscholar   +1 more source

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

Hormones and the hippocampus [PDF]

open access: yesJournal of Endocrinology, 2001
Hippocampal lesions produce memory deficits, but the exact function of the hippocampus remains obscure. Evidence is presented that its role in memory may be ancillary to physiological regulation. Molecular studies demonstrate that the hippocampus is a primary target for ligands that reflect body physiology, including ion balance and blood pressure ...
openaire   +2 more sources

Chronic Antidepressant Treatment Increases Neurogenesis in Adult Rat Hippocampus

open access: yesJournal of Neuroscience, 2000
Recent studies suggest that stress-induced atrophy and loss of hippocampal neurons may contribute to the pathophysiology of depression. The aim of this study was to investigate the effect of antidepressants on hippocampal neurogenesis in the adult rat ...
J. Malberg   +3 more
semanticscholar   +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

Aerobic Exercise, Cardiorespiratory Fitness, and the Human Hippocampus

open access: yesHippocampus, 2021
The hippocampus is particularly susceptible to neurodegeneration. Physical activity, specifically increasing cardiorespiratory fitness via aerobic exercise, shows promise as a potential method for mitigating hippocampal decline in humans.
Sarah L. Aghjayan   +5 more
semanticscholar   +1 more source

Diffusion MRI of the Hippocampus

open access: yesThe Journal of Neuroscience, 2023
The hippocampus is a brain structure that plays key roles in a variety of cognitive processes. Critically, a wide range of neurological disorders are associated with degeneration of the hippocampal microstructure, defined as neurons, dendrites, glial cells, and more.
Bradley G. Karat   +2 more
openaire   +2 more sources

The hippocampus and depression

open access: yesEuropean Psychiatry, 2002
SummaryThe effect of depression on the hippocampus has become the focus of a number of structural and functional neuroimaging studies. In the past two decades, advances in neuroimaging techniques now allow the examination of subtle changes in both regional structure and function that are associated with the pathophysiology of depression.
Y I, Sheline, B L, Mittler, M A, Mintun
openaire   +2 more sources

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