Results 231 to 240 of about 4,981,199 (268)
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Perineuronal satellitosis in the human hippocampal formation
Hippocampus, 1993AbstractA previously unreported example of perineuronal satellitosis in the medial CA1 and adjacent subiculum in the human hippocampal formation is described. This phenomenon is characterized by a clustering of glial cells in relation to the perikarya of a subpopulation of neurons in the deep pyramidal layer and around most neurons scattered in the ...
Carl W. Cotman +5 more
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Two P300 generators in the hippocampal formation
Hippocampus, 2009AbstractThe presentation of rare target stimuli results in P300 scalp event‐related potentials (ERPs). Generators of this ERP component were found in various brain areas, indicating that multiple cortical and subcortical areas subserve target detection. One of these structures is the mediotemporal lobe (MTL). In the hippocampus, large negative MTL‐P300
Christian G. Bien +5 more
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The distribution of acetylcholinesterase in the hippocampal formation of the monkey
Journal of Comparative Neurology, 1984AbstractIn order to study the distribution of acetylcholinesterase (AChE) in the primate hippocampal formation, we have stained serial sections through the brains of nine macaque monkeys for AChE by two variants of the Koelle acetyl‐thiocholine method.
I. Bakst, David G. Amaral
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Subcortical afferents to the hippocampal formation in the monkey
Journal of Comparative Neurology, 1980AbstractThe distribution of neurons in the basal telencephalon, the diencephalon, and the brainstem that project to the hippocampal formation has been analyzed in mature cynomolgus monkeys (Macaca fascicularis) by the injection of horseradish peroxidase into different rostro‐caudal levels of the hippocampal formation.
W. M. Cowan, David G. Amaral
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Acetylcholine Sensitivity of Hippocampal Formation Neurons
Canadian Journal of Physiology and Pharmacology, 1974Microiontophoretic application of acetylcholine to neurons in the CA1 pyramidal and dentate granule layers of the rabbit hippocampus revealed differences both in the number of cells excited and the nature of the excitation in the two populations of neurons. A smaller percentage (35.7%) of CA1 pyramidal neurons were found to be excited by acetylcholine,
Brian H. Bland +2 more
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Thalamic projections to the hippocampal formation in the cat
Neuroscience Letters, 1985The thalamo-hippocampal projections in the cat were studied by anterograde and retrograde tracing methods. Injections of horseradish peroxidase (HRP) into the hippocampus and dentate gyrus led to retrograde labeling of cells in the nucleus reuniens of the ipsilateral thalamus throughout almost its entire anteroposterior extent.
Kahee Niimi +2 more
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The avian hippocampal formation: subdivisions and connectivity
Behavioural Brain Research, 1999The avian hippocampal formation (HP) is considered to be homologous to the mammalian hippocampus on the basis of topography, developmental origin and its role in processing spatial memory. However, the morphological organization of the avian HP is very different from that of mammals and components similar to the subdivisions of the mammalian structure ...
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The commissural connections of the monkey hippocampal formation
Journal of Comparative Neurology, 1984AbstractThe commissural connections of the hippocampal formation have been analyzed in the monkey (Macaca fascicularis) using both anterograde and retrograde labeling techniques. We have observed a number of striking differences between the organization of the commissural projections in the monkey and that observed in the rodent brain.
David G. Amaral +2 more
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Postnatal Development of the Human Hippocampal Formation
2010The postnatal development of the human hippocampal formation (HF) is subject of increasing interest due to its implication in important pathologies that hamper the normal development of children. In this work, we present a glimpse of the main events that constitute important milestones in the development and shaping of some of the most important ...
Sandra Cebada-Sánchez +2 more
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Efferent connections of the hippocampal formation in the rat
Brain Research, 1977In this investigation the projections of the hippocampal formation to the septal area and hypothalamus were studied in the rat with the combined use of 3H-amino acid radioautography and horseradish peroxidase histochemistry. The results indicate that all of the fibers which project to the hypothalamus and the majority of fibers which project to the ...
Allan Siegel, Richard C. Meibach
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