Results 31 to 40 of about 601,318 (311)

Neurobiología de los trastornos del aprendizaje y sus implicaciones en el desarrollo infantil: propuesta de una nueva perspectiva conceptual

open access: yesPsicoespacios, 2017
Neurobiology of learning disorders and its implications for child development; proposal for a new conceptual perspective  Resumen La investigación en torno a los procesos de aprendizaje y sus alteraciones clínicas ha encontrado gran soporte en la ...
Jorge Alexander Ríos-Flórez   +1 more
doaj   +1 more source

Different behavioral strategies of two sympatric seahorses: habitat availability and increased density of Hippocampus guttulatus alter the behavior of Hippocampus hippocampus

open access: yesFrontiers in Marine Science, 2023
In the light of future ocean warming scenarios and habitat fragmentation, coastal fishes must adjust their physiological and behavioral traits to face the combined effect of global warming and ecological interactions.
Davide Spatafora   +5 more
doaj   +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

Hippocampus Substructure Segmentation Using Morphological Vision Transformer Learning [PDF]

open access: yesarXiv, 2023
Background: The hippocampus plays a crucial role in memory and cognition. Because of the associated toxicity from whole brain radiotherapy, more advanced treatment planning techniques prioritize hippocampal avoidance, which depends on an accurate segmentation of the small and complexly shaped hippocampus.
arxiv  

Toward the biological model of the hippocampus as the successor representation agent [PDF]

open access: yes2022, Biosystems, 213, 104612, 2020
The hippocampus is an essential brain region for spatial memory and learning. Recently, a theoretical model of the hippocampus based on temporal difference (TD) learning has been published. Inspired by the successor representation (SR) learning algorithms, which decompose value function of TD learning into reward and state transition, they argued that ...
arxiv   +1 more source

Improvements Glutation Levels in the Hippocampus of Aged and Oxidative-Stressed Rats by Supplementation of Alanine-Glutamine Dipeptide

open access: yesSains Medika, 2012
Background: Physiological aging or aging due to oxidative stress causes to disruption of glutathione homeostasis of the hippocampus. Disruption of glutathione homeostasis characterized by a decrease in hippocampus glutathione levels below the normal ...
Sunarno Sunarno   +3 more
doaj   +1 more source

Multimodal neural networks better explain multivoxel patterns in the hippocampus [PDF]

open access: yesarXiv, 2021
The human hippocampus possesses "concept cells", neurons that fire when presented with stimuli belonging to a specific concept, regardless of the modality. Recently, similar concept cells were discovered in a multimodal network called CLIP (Radford et at., 2021).
arxiv  

Parallel and convergent processing in grid cell, head-direction cell, boundary cell, and place cell networks. [PDF]

open access: yes, 2013
The brain is able to construct internal representations that correspond to external spatial coordinates. Such brain maps of the external spatial topography may support a number of cognitive functions, including navigation and memory.
Brandon, Mark P   +2 more
core   +2 more sources

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

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