Hippocampus

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Maturation of the hippocampal formation and amygdala in Macaca mulatta: A volumetric magnetic resonance imaging study
Hippocampus - Tập 20 Số 8 - Trang 922-935 - 2010
Christa Payne, Christopher J. Machado, Nancy G. Bliwise, Jocelyne Bachevalier
AbstractMalformations of the hippocampal formation and amygdala have been implicated in several neurodevelopmental disorders; yet relatively little is known about their normal structural development. The purpose of this study was to characterize the early developmental trajectories of the hippocampus and amygdala in the rhesus macaques (Macaca mulatta) using noninvasive MRI techniques. T1‐weighted... hiện toàn bộ
Hippocampal neurogenesis: Opposing effects of stress and antidepressant treatment
Hippocampus - Tập 16 Số 3 - Trang 239-249 - 2006
Jennifer Warner‐Schmidt, Ronald S. Duman
AbstractThe hippocampus is one of several limbic brain structures implicated in the pathophysiology and treatment of mood disorders. Preclinical and clinical studies demonstrate that stress and depression lead to reductions of the total volume of this structure and atrophy and loss of neurons in the adult hippocampus. One of the cellular mechanisms that could account for alterations of hippocampal... hiện toàn bộ
Bilateral hippocampal volume reduction in adults with post-traumatic stress disorder: A meta-analysis of structural MRI studies
Hippocampus - Tập 15 Số 6 - Trang 798-807 - 2005
Michael E. Smith
Recollection and familiarity: Examining controversial assumptions and new directions
Hippocampus - Tập 20 Số 11 - Trang 1178-1194 - 2010
Andrew P. Yonelinas, Mariam Aly, Wei‐Chun Wang, Joshua D. Koen
AbstractIt is well accepted that recognition memory reflects the contribution of two separable memory retrieval processes, namely recollection and familiarity. However, fundamental questions remain regarding the functional nature and neural substrates of these processes. In this article, we describe a simple quantitative model of recognition memory (i.e., the dual‐process signal detection model) t... hiện toàn bộ
Dynamic mapping of normal human hippocampal development
Hippocampus - Tập 16 Số 8 - Trang 664-672 - 2006
Nitin Gogtay, Tom Nugent, David Herman, Anna E. Ordóñez, Deanna Greenstein, Kiralee M. Hayashi, Liv Clasen, Arthur W. Toga, Jay N. Giedd, Judith L. Rapoport, Paul M. Thompson
AbstractThe hippocampus, which plays an important role in memory functions and emotional responses, has distinct subregions subserving different functions. Because the volume and shape of the hippocampus are altered in many neuropsychiatric disorders, it is important to understand the trajectory of normal hippocampal development. We present the first dynamic maps to reveal the anatomical sequence ... hiện toàn bộ
Evidence for a specific role of the anterior hippocampal region in successful associative encoding
Hippocampus - Tập 17 Số 11 - Trang 1071-1080 - 2007
Elizabeth F. Chua, Daniel L. Schacter, Erin Rand‐Giovannetti, Reisa A. Sperling
AbstractIt has been well established that the hippocampal formation plays a critical role in the formation of memories. However, functional specialization within the hippocampus remains controversial. Using functional magnetic resonance imaging (fMRI) during a face‐name associative encoding task, followed by a postscan recognition test for face memory and face‐name pair memory, we investigated the... hiện toàn bộ
Regional analysis of hippocampal activation during memory encoding and retrieval: fMRI study
Hippocampus - Tập 13 Số 1 - Trang 164-174 - 2003
Michael D. Greicius, Ben Krasnow, Jesse M Boyett-Anderson, Stéphan Eliez, Alan F. Schatzberg, Allan L. Reiss, Vinod Menon
AbstractInvestigators have recently begun to examine the differential role of subregions of the hippocampus in episodic memory. Two distinct models have gained prominence in the field. One model, outlined by Moser and Moser (Hippocampus 1998;8:608–619), based mainly on animal studies, has proposed that episodic memory is subserved by the posterior two‐thirds of the hippocampus alone. A second mode... hiện toàn bộ
Distinct hippocampal regions make unique contributions to relational memory
Hippocampus - Tập 19 Số 2 - Trang 111-117 - 2009
Kelly S. Giovanello, David M. Schnyer, Mieke Verfaellie
AbstractNeuroscientific research has shown that the hippocampus is important for binding or linking together the various components of a learning event into an integrated memory. In a prior study, we demonstrated that the anterior hippocampus is involved in memory for the relations among informational elements to a greater extent that it is involved in memory for individual elements (Giovanello et... hiện toàn bộ
LTP‐ and LTD‐inducing stimulations cause opposite changes in arc/arg3.1 mRNA level in hippocampal area CA1 in vivo
Hippocampus - Tập 21 Số 12 - Trang 1290-1301 - 2011
Eser Yilmaz‐Rastoder, Takeaki Miyamae, Amy E. Braun, Edda Thiels
AbstractImmediate early genes (IEGs) typically are the first genetic responders to a variety of cellular activations. The IEG that encodes activity‐regulated cytoskeleton‐associated protein (arc/arg3.1) has attracted much interest because its mRNA is transported to and translated near activated synapses. Moreover, arc has been implicated in both long‐term potentiation (LTP) and long‐term depressio... hiện toàn bộ
Network structure of functional hippocampal lateralization in birds
Hippocampus - Tập 25 Số 11 - Trang 1418-1428 - 2015
Elisabeth Jonckers, Onur Güntürkün, Geert De Groof, Luce Vander Elst, Verner P. Bingman
ABSTRACTFunctional hemispheric asymmetry is a common feature of vertebrate brain organization, yet little is known about how hemispheric dominance is implemented at the neural level. One notable example of hemispheric dominance in birds is the leading role of the left hippocampal formation in controlling navigational processes that support homing in pigeons. Relying on resting state fMRI analyses ... hiện toàn bộ
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