hippocampus

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Related to Hippocampal formation: Hippocampus, limbic system, Entorhinal cortex

hippocampus

[‚hip·ə′kam·pəs]
(anatomy)
A ridge that extends over the floor of the descending horn of each lateral ventricle of the brain.

Hippocampus

[‚hip·ə′kam·pəs]
(vertebrate zoology)
A genus of marine fishes in the order Gasterosteiformes which contains the sea horses.

hippocampus

fabulous marine creature; half fish, half horse. [Rom. Myth. and Art: Hall, 154]
References in periodicals archive ?
Our previous results [27] and present findings revealed a significant increase in GFAP-immunolabeled astrocytes in the DG polymorphic layer at 18 wai with ME7-infected brain homogenate in both hippocampal formation and dorsal striatum.
The HTR1A, HTR2A, and HTR1F genes are highly expressed in all areas of C57BL/6J mice, but in humans these only appear to be highly expressed in some areas of the cortex (frontal lobe, parietal, and cingulate gyrus) and hippocampal formation, with a difference in terms of subcortical structures: while expression in humans is not high, in C57BL/6J this expression is maintained.
Increased ADC in hippocampal formations might reflect that the cellular integrity of the tissue is not significantly affected, but diffusion is increased subjectively as is the function deficit caused by this situation.
These suggested that the change in the hippocampal formation of human brain has a certain degree of reversibility, and that small volumes were not due to the risk factor of PTSD, but were probably prompted by excitability.
Our study reporting number of neurons in dog hippocampal formation is probably the first.
Second, the advances made in functional magnetic resonance imaging (fMRI) are sufficiently sensitive to identify dysfunction in the small regions of the brain that are associated with schizophrenia--the hippocampal formation, amygdala, the frontal cortex, and the basal ganglia.
The hippocampal formation was stained using the Rapid Golgi protocol (Valverde 1993), and the cerebellum was stained using a modified Golgi-Cox staining protocol (Morest 1981) in tissue sections (100 [micro]m), prepared using a sliding microtome (American Optical, New Haven, CT).
This raises the possibility that the effects seen are due, not to hippocampal damage, but to damage of fibres of passage running through the hippocampal formation. This problem can be tackled - as it has in many mammalian studies - by using neurotoxic lesions, which selectively destroy cell bodies while leaving fibres intact.
This so-called hippocampal formation helps to regulate memory formation and the learning of information.
Neurogenesis, synaptogenesis and plasticity in the hippocampal formation are critical for these functions (Noble et al., 2014).
Jewgenow et al., "Myelination in the human hippocampal formation from midgestation to adulthood," International Journal of Developmental Neuroscience, vol.
The researchers focused primarily on the dentate gyrus (DG), a part of the hippocampal formation in the brain that, when it declines, is often associated with aging.