OOIR: Observatory of International Research

Papers

(The TQCC of Hippocampus is 5. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
Issue Information ‐ TOC	59
Issue Information ‐ TOC	51
Issue Information ‐ Editorial Board	46
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Environmental enrichment and social isolation modulate inhibitory transmission and plasticity in hippocampal area CA2	32
Long‐term depression induction and maintenance across regions of the apical branch of CA1 dendrites	30
Issue Information ‐ Editorial Board	29
Anticonvulsant effect of equilibrative nucleoside transporters 1 inhibitor in a mouse model of Dravet syndrome	27
Low rate hippocampal delay period activity encodes behavioral experience	25
Field EPSPs of Dentate Gyrus Granule Cells Studied by Selective Optogenetic Activation of Hilar Mossy Cells in Hippocampal Slices	25
Examining the Three‐Dimensional Spatial Architecture of Mouse Amygdala Engram Ensembles	24
Adult neurogenesis in Alzheimer's disease	23
Dominant role of adult neurogenesis‐induced structural heterogeneities in driving plasticity heterogeneity in dentate gyrus granule cells	23
17β‐Estradiol reduces inhibitory synaptic currents in entorhinal cortex neurons through G protein‐coupled estrogen receptor‐1 activation of extracellular signal‐regulated kinase	22
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Hippocampal spatial view cells, place cells, and concept cells: View representations	20
Organization of projections from the entorhinal cortex to the hippocampal formation of the Egyptian fruit bat Rousettus aegyptiacus	19
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Comparison of head direction cell firing characteristics across thalamo‐parahippocampal circuitry	19
The retrosplenial cortex of Carollia perspicillata, Seba's short‐tailed fruit bat	19
Issue Information ‐ TOC	17
Issue Information ‐ Editorial Board	16
Issue Information ‐ Editorial Board	16
Comparison of histological delineations of medial temporal lobe cortices by four independent neuroanatomy laboratories	15
Differentiated Presynaptic Input to OLMɑ2 Cells Along the Hippocampal Dorsoventral Axis: Implications for Hippocampal Microcircuit Function	15

Neuronal activity‐related transcription is blunted in immature compared to mature dentate granule cells	15
A combined DTI‐fMRI approach for optimizing the delineation of posteromedial versus anterolateral entorhinal cortex	15
Frequency–dependency of the involvement of dopamine D1/D5 and beta‐adrenergic receptors in hippocampal LTD triggered by locus coeruleus stimulation	15
Long‐Term Potentiation: The Accidental Discovery	15
Inferior and Middle Longitudinal Fasciculus and Fornix Support Allocentric Representation	14
Issue Information ‐ TOC	14
The medial entorhinal cortex is necessary for the stimulus control over hippocampal place fields by distal, but not proximal, landmarks	13
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Oscillations and Boundaries in My Route Through the Hippocampal Cognitive Map	13
Brain Networks Differ According to Levels of Interference in Spatiotemporal Processing	13
Issue Information ‐ TOC	12
Effects of healthy aging and mnemonic strategies on verbal memory performance across the adult lifespan: Mediating role of posterior hippocampus	12
Issue Information ‐ Editorial Board	12
CA3–CA1 long‐term potentiation occurs regardless of respiration and cardiac cycle phases in urethane‐anesthetized rats	12
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A distinct impact of repeated morphine exposure on synaptic plasticity at Schaffer collateral‐CA1, temporoammonic‐CA1, and perforant pathway‐dentate gyrus synapses along the long	12
Associations Between Episodic Memory and Hippocampal Volume in Late Adulthood	12
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Complementary representations of time in the prefrontal cortex and hippocampus	11
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Issue Information ‐ TOC	11
The fibro‐ and cyto‐architecture demarcating the border between the dentate gyrus and CA3 in sheep (Ovis aries) and domestic pig (Sus scrofa domesticus)	11
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Extended trajectory of spatial memory errors in typical and atypical development: The role of binding and precision	11
Manipulating Engram Histone Acetylation Alters Memory Consolidation	11
Issue Information ‐ Editorial Board	11
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Issue Information ‐ TOC	10
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The analysis of H.M.'s brain: A brief review of status and plans for future studies and tissue archive	9
Issue Information ‐ TOC	9
Perceived plausibility modulates hippocampal activity in episodic counterfactual thinking	9
Transcranial Direct Current Stimulation Over Bilateral Temporal Lobes Modulates Hippocampal‐Occipital Functional Connectivity and Visual Short‐Term Memory Precision	9
Unpacking the Medial Temporal Lobe: Separating Recollection and Familiarity	9
Neuroplastic changes inc‐Fos,ΔFosB,BDNF,trkB, and Arc expression in the hippocampus of male Roman rats: differential effects of sexual activity	9
Issue Information ‐ Editorial Board	9
Distinct engrams control fear and extinction memory	9
Hippocampal spatial view cells for memory and navigation, and their underlying connectivity in humans	8
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Hippocampal storage and recall of neocortical “What”–“Where” representations	8
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NMDA receptor activity during postnatal development determines intrinsic excitability and mossy fiber long‐term potentiation of CA3 pyramidal cells	8
Correction to “A complex relation between levels of adult hippocampal neurogenesis and expression of the immature neuron marker doublecortin”	7
Tau PET Burden Is Associated With Hippocampal Microstructure and Episodic Memory in Amyloid Positive Older Adults	7
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New hues for CA2	7
Issue Information ‐ Editorial Board	7
Molecular mechanisms underpinning deconditioning‐update in fear memory	7
Issue Information – TOC	7
	7

An Accidental Journey Into the Black Hole of the Hippocampus and How We Learned About What Makes a Context a Context	7
A meta‐analysis of the relation between hippocampal volume and memory ability in typically developing children and adolescents	7
Knockout of NMDARs in CA1 and dentate gyrus fails to impair temporal control of conditioned behavior in mice	7
Issue Information ‐ Editorial Board	7
Curved multiplanar reformatting allows the accurate histological delineation of hippocampal subfields	7
Altered Coding of Environmental Boundaries in Human Aging: An fMRI Study	7
Automated protocols for delineating human hippocampal subfields from 3 Tesla and 7 Tesla magnetic resonance imaging data	6
Issue Information ‐ Editorial Board	6
In vivo structural connectivity of the reward system along the hippocampal long axis	6
Correction to “Gradual decorrelation of CA3 ensembles associated with contextual discrimination learning is impaired by Kv1.2 insufficiency”	6
Abnormal Astrocyte Heterogeneity in the Dentate Gyrus of Rats Prone to Audiogenic Seizures Can Be Corrected by the Nootropic Drug Piracetam	6
Distinct roles of Bdnf I and Bdnf IV transcript variant expression in hippocampal neurons	6
Properties and hemispheric differences of theta oscillations in the human hippocampus	6
Impaired perceptual discrimination of complex objects in older adults at risk for dementia	6
Loss of individualized behavioral trajectories in adult neurogenesis‐deficient cyclin D2 knockout mice	6
An integrative view of human hippocampal function: Differences with other species and capacity considerations	6
Hippocampal‐Prelimbic Coupling During Context‐Dependent Extinction Retrieval in Rats	6
A place with a view: A first‐person perspective in the hippocampal memory space	6
Postnatal development of hippocampal CA2 structure and function during the emergence of social recognition of peers	5
Impacted spike frequency adaptation associated with reduction of KCNQ2/3 exacerbates seizure activity in temporal lobe epilepsy	5
The Anatomy of Context	5
Issue Information ‐ TOC	5
Issue Information ‐ Editorial Board	5
Issue Information ‐ TOC	5
Changes in Naturalistic Viewing in Healthy Aging and Amnestic Mild Cognitive Impairment	5
Coumestrol pre‐treatment improves spatial learning and memory deficits following transient cerebral ischemia recruiting hippocampal GluR2 AMPA receptors	5
AMPA and NMDA receptors in dentate gyrus mediate memory for sucrose in two port discrimination task	5
Defining hippocampal area CA2 in the fox (Vulpes vulpes) brain	5
Postsynaptic GABA_B‐receptor mediated currents in diverse dentate gyrus interneuron types	5
Cholinergic and behavior‐dependent beta and gamma waves are coupled between olfactory bulb and hippocampus	5
Chronic α5‐ GABA ‐A Receptor Potentiation Promotes Mouse Adult Hippocampal Neurogenesis	5
Issue Information ‐ Editorial Board	5
Associations between cortical β‐amyloid burden, fornix microstructure and cognitive processing of faces, places, bodies and other visual objects in early Alzheimer's disease	5