Morpho-physiological criteria divide dentate gyrus interneurons into classes.

abstract：:In this study the subcortical afferents for the rat PER areas 35 and 36, POR, and the lateral and medial entorhinal areas (LEA and MEA) were characterized. We analyzed 33 retrograde tract-tracing experiments distributed across the five regions. For each experiment, we estimated the total numbers, percentages, and dens...

journal_title：Hippocampus

authors： Tomás Pereira I,Agster KL,Burwell RD

更新日期：2016-09-01 00:00:00

abstract：:The advent of high-resolution magnetic resonance imaging (MRI) has enabled in vivo research in a variety of populations and diseases on the structure and function of hippocampal subfields and subdivisions of the parahippocampal gyrus. Because of the many extant and highly discrepant segmentation protocols, comparing r...

journal_title：Hippocampus

authors： Wisse LEM,Daugherty AM,Olsen RK,Berron D,Carr VA,Stark CEL,Amaral RSC,Amunts K,Augustinack JC,Bender AR,Bernstein JD,Boccardi M,Bocchetta M,Burggren A,Chakravarty MM,Chupin M,Ekstrom A,de Flores R,Insausti R,Kanel P

更新日期：2017-01-01 00:00:00

abstract：:Wnt proteins have emerged as transmembrane signaling molecules that regulate learning and memory as well as synaptic plasticity at central synapses (Inestrosa and Arenas (2010) Nat Rev Neurosci 11:77-86; Maguschak and Ressler (2011) J Neurosci 31:13057-13067; Tabatadze et al. (2012) Hippocampus 22: 1228-1241; Fortress...

journal_title：Hippocampus

authors： Tabatadze N,McGonigal R,Neve RL,Routtenberg A

更新日期：2014-04-01 00:00:00

abstract：:Cocaine induces an increase in hippocampal and nucleus accumbens (Nac) serotonin (5-HT) concentration parallel to locomotor activation. Both effects can be modulated by systemic 5-HT(1A)-receptor agonism/antagonism. Given the contribution of the hippocampus to spontaneous behavioral activity, these observations sugges...

journal_title：Hippocampus

authors： Müller CP,Thönnessen H,Barros M,Tomaz C,Carey RJ,Huston JP

更新日期：2004-01-01 00:00:00

abstract：:Granule cells of the mouse fascia dentata are widely used in studies on neuronal development and plasticity. In contrast to the rat, however, high-resolution morphometric data on these cells are scarce. Thus, we have analyzed granule cells in the fascia dentata of the adult Thy1-GFP mouse (C57BL/6 background). In this...

journal_title：Hippocampus

authors： Vuksic M,Del Turco D,Bas Orth C,Burbach GJ,Feng G,Müller CM,Schwarzacher SW,Deller T

更新日期：2008-01-01 00:00:00

abstract：:Information storage in the brain is a temporally graded process involving different memory types or phases. It has been assumed for over a century that one or more short-term memory (STM) processes are involved in processing new information while long-term memory (LTM) is being formed. Because brain-derived neutrophic...

journal_title：Hippocampus

authors： Alonso M,Vianna MR,Depino AM,Mello e Souza T,Pereira P,Szapiro G,Viola H,Pitossi F,Izquierdo I,Medina JH

更新日期：2002-01-01 00:00:00

abstract：:A large body of neuroscientific work indicates that exposure to experienced stress causes damage to both cortical and hippocampal cells and results in impairments to cognitive abilities associated with these structures. Similarly, work within the domain of cognitive aging demonstrates that elderly participants who rep...

journal_title：Hippocampus

authors： Marshall AC,Cooper NR,Geeraert N

更新日期：2016-03-01 00:00:00

abstract：:We have studied 5-hydroxytryptamine (5-HT) release in the hippocampal formation following electrical stimulation of the dorsal and median raphé nuclei in the behaving rat. The primary finding in this study is a decrease in neuronal release of serotonin in the dorsal hippocampal formation following electrical stimulati...

journal_title：Hippocampus

authors： Mokler DJ,Lariviere D,Johnson DW,Theriault NL,Bronzino JD,Dixon M,Morgane PJ

更新日期：1998-01-01 00:00:00

abstract：:The present study investigated the delayed and persistent effects of 4 beta-phorbol 12,13-dibutyrate (PDBu) on the K(+)-evoked release of endogenous glutamate and dynorphin B-like immunoreactivity from a subcellular fraction (P3) that is enriched in hippocampal mossy fiber synaptosomes. It is demonstrated that the alp...

journal_title：Hippocampus

authors： Terrian DM,Ways DK,Gannon RL,Zetts DA

更新日期：1993-04-01 00:00:00

abstract：:Previous attempts to elucidate whether a loss of hippocampal synapses occurs during aging provided conflicting results, possibly due to the unavailability, at the time, of unbiased methods for synapse quantitation. This study was designed to reexamine the issue by means of modern technical procedures that provide unbi...

journal_title：Hippocampus

authors： Geinisman Y,deToledo-Morrell L,Morrell F,Persina IS,Rossi M

更新日期：1992-10-01 00:00:00

abstract：:A little over 20 years ago, (Teyler and DiScenna,1986; Behav Neurosci 100:147-152) proposed the hippocampal memory index theory. It offered an account of episodic memory based on the intrinsic organization of the hippocampus, its synaptic physiology and its anatomical relationship to other regions of the brain. The es...

journal_title：Hippocampus

authors： Teyler TJ,Rudy JW

更新日期：2007-01-01 00:00:00

abstract：:This study examined the ability of cognitively normal young adults (n = 30) and older adults (n = 30) to perform a delayed match-to-sample task involving varying degrees of spatial interference to assess spatial pattern separation. Each trial consisted of a sample phase followed by a choice phase. During the sample ph...

journal_title：Hippocampus

authors： Holden HM,Hoebel C,Loftis K,Gilbert PE

更新日期：2012-09-01 00:00:00

abstract：:The locomotor effects of intra-NAcc injection of dopamine receptor agonists following discrete lesion or inhibition of the DH or the VH have been poorly investigated using only the indirect dopamine receptor agonist amphetamine. In the present study, we investigated how lidocaine in the DH or the VH modulated hyperloc...

journal_title：Hippocampus

authors： Rouillon C,Abraini JH,David HN

更新日期：2007-01-01 00:00:00

abstract：:The molecular mechanisms of regionalization of the medial pallium (MP), the anlage of the hippocampus, and transitional (cingulate and retrosplenial) cortices are largely unknown. Previous analyses have outlined an important role of the transcription factor (TF) Zbtb20 for hippocampal CA1 field specification (Nielsen ...

journal_title：Hippocampus

authors： Rosenthal EH,Tonchev AB,Stoykova A,Chowdhury K

更新日期：2012-11-01 00:00:00

abstract：:Adult neurogenesis in the dentate gyrus (DG) plays a crucial role for pattern separation, and there are sex differences in the regulation of neurogenesis. Although sex differences, favoring males, in spatial navigation have been reported, it is not known whether there are sex differences in pattern separation. The cur...

journal_title：Hippocampus

authors： Yagi S,Chow C,Lieblich SE,Galea LA

更新日期：2016-01-01 00:00:00

abstract：:Septal nuclei are suggested to work as an interface between the hippocampal formation, involved in higher cognitive functions, and the hypothalamus, involved in motivational behaviors such as feeding, drinking, and intracranial self-stimulation. In the present study, to elucidate a role of the septal nuclei in motivat...

journal_title：Hippocampus

authors： Nishijo H,Kita T,Tamura R,Eifuku S,Terasawa K,Ono T

更新日期：1997-01-01 00:00:00

abstract：:To minimize the variability in the extent of lesions made by injections of the excitotoxin ibotenic acid in rhesus monkeys, we developed and validated an MRI-based method to determine the efficacy of the injections soon after surgery. T2-weighted MR images were obtained 6-11 days after surgery from 17 brain hemisphere...

journal_title：Hippocampus

authors： Málková L,Lex CK,Mishkin M,Saunders RC

更新日期：2001-01-01 00:00:00

abstract：:The conditioned cue preference (CCP) task was used to study the ability of rats to discriminate between spatial locations. Food-deprived rats explored an eight-arm radial maze with no food present (pre-exposure). On subsequent days, they were alternately confined in one arm of the maze with food and in another arm wit...

journal_title：Hippocampus

authors： Gaskin S,Chai SC,White NM

更新日期：2005-01-01 00:00:00

abstract：:We have previously shown that in urethane-anesthetized rats the frequency of rhythmical slow activity in the hippocampus ("theta") is controlled by the medial supramammillary nucleus (SuM). In particular, injections of procaine into SuM in urethane-anesthetized animals reduce the frequency of theta. However, it has be...

journal_title：Hippocampus

authors： McNaughton N,Logan B,Panickar KS,Kirk IJ,Pan WX,Brown NT,Heenan A

更新日期：1995-01-01 00:00:00

abstract：:The electrophysiological properties of neurons in the rat perirhinal cortex were analyzed with intracellular recordings in an in vitro slice preparation. Cells included in this study (n = 59) had resting membrane potential (RMP) = -73.9 +/- 8.5 mV (mean +/- SD), action potential amplitude = 95.5 +/- 10.4 mV, input res...

journal_title：Hippocampus

authors： D'Antuono M,Biagini G,Tancredi V,Avoli M

更新日期：2001-01-01 00:00:00

abstract：:The retrosplenial cortex is situated at the crossroads between the hippocampal formation and many areas of the neocortex, but few studies have examined the connections between the hippocampal formation and the retrosplenial cortex in detail. Each subdivision of the retrosplenial cortex projects to a discrete terminal ...

journal_title：Hippocampus

authors： Wyss JM,Van Groen T

更新日期：1992-01-01 00:00:00

abstract：:Individual variation in the attribution of motivational salience to reward-related cues is believed to underlie addiction vulnerability. Pavlovian conditioned approach measures individual variation in motivational salience by identifying rats that are attracted to and motivated by reward cues (sign-trackers) or motiva...

journal_title：Hippocampus

authors： Fitzpatrick CJ,Creeden JF,Perrine SA,Morrow JD

更新日期：2016-11-01 00:00:00

abstract：:Changes in the spatial arrangement or identity of objects inside a familiar environment induce reexploration. The present study looks at modifications of place cell activity during such renewed exploration. Hungry rats foraged for food in a cylinder with a salient cue card attached to the wall and with two distinct ob...

journal_title：Hippocampus

authors： Lenck-Santini PP,Rivard B,Muller RU,Poucet B

更新日期：2005-01-01 00:00:00

abstract：:To clarify the specific contribution of the medial temporal lobe structures in spatial memory, we tested monkeys (Macaca mulatta) with sham operations and with lesions of either the hippocampal formation, areas TH/TF or perirhinal cortex on two versions of the visual-paired comparison task, measuring Spatial Location,...

journal_title：Hippocampus

authors： Bachevalier J,Nemanic S

更新日期：2008-01-01 00:00:00

abstract：:Trans-synaptic cell-adhesion molecules have been implicated in regulating CNS synaptogenesis. Among these, the Neuroligin (NL) family (NLs 1-4) of postsynaptic adhesion proteins has been shown to promote the development and specification of excitatory versus inhibitory synapses. NLs form a heterophilic complex with th...

journal_title：Hippocampus

authors： Dahlhaus R,Hines RM,Eadie BD,Kannangara TS,Hines DJ,Brown CE,Christie BR,El-Husseini A

更新日期：2010-02-01 00:00:00

abstract：:The role of the hippocampus in retrograde amnesia remains controversial and poorly understood. Two cases are reported of discrete bilateral hippocampal damage, one of which was a rare case of limbic encephalitis secondary to the human herpes virus 6. Detailed memory testing showed marked anterograde memory impairment,...

journal_title：Hippocampus

authors： Kapur N,Brooks DJ

更新日期：1999-01-01 00:00:00

abstract：:The vestibular system contributes to the performance of various spatial memory tasks, but few studies have attempted to disambiguate the roles of the semicircular canals and otolith organs in this performance. This study tested the otolithic contribution to spatial working and reference memory by evaluating the perfor...

journal_title：Hippocampus

authors： Yoder RM,Kirby SL

更新日期：2014-10-01 00:00:00

abstract：:Several recent studies have compared episodic and spatial memory in neuroimaging paradigms in order to understand better the contribution of the hippocampus to each of these tasks. In the present study, we build on previous findings showing common neural activation in default network areas during episodic and spatial ...

journal_title：Hippocampus

authors： Robin J,Hirshhorn M,Rosenbaum RS,Winocur G,Moscovitch M,Grady CL

更新日期：2015-01-01 00:00:00

abstract：:We recorded neuromagnetic fields evoked by a somatosensory oddball task requiring subjects to discriminate target stimuli from nontarget stimuli, which are different in stimulation intensity, with a mental count of the target stimuli. A whole head type 80-channel magnetoencephalography (MEG) system with a 50-mm baseli...

journal_title：Hippocampus

authors： Hamada Y,Sugino K,Kado H,Suzuki R

更新日期：2004-01-01 00:00:00

abstract：:Temporal difference learning (TD) is a popular algorithm in machine learning. Two learning signals that are derived from this algorithm, the predictive value and the prediction error, have been shown to explain changes in neural activity and behavior during learning across species. Here, the predictive value signal is...

journal_title：Hippocampus

authors： Okatan M

更新日期：2009-05-01 00:00:00