2024
A tradeoff between efficiency and robustness in the hippocampal-neocortical memory network during human and rodent sleep
Hahn M, Lendner J, Anwander M, Slama K, Knight R, Lin J, Helfrich R. A tradeoff between efficiency and robustness in the hippocampal-neocortical memory network during human and rodent sleep. Progress In Neurobiology 2024, 242: 102672. PMID: 39369838, DOI: 10.1016/j.pneurobio.2024.102672.Peer-Reviewed Original ResearchConceptsNon-REM sleepInformation coding efficiencyConsolidation processCoding efficiencyStates of disengagementPopulation codeInformation processing capacityMemory consolidationTask engagementCognitive resourcesMemory formationNeural population codesInformation-theoretic perspectiveCognitive engagementBrain statesInformation processingRobust codesIntracranial studiesMemory networkCoding regimeSleepNeocortexPattern repetitionExternal worldProcessing capacity
2023
Hippocampal Mechanisms Support Cortisol-Induced Memory Enhancements
Sherman B, Harris B, Turk-Browne N, Sinha R, Goldfarb E. Hippocampal Mechanisms Support Cortisol-Induced Memory Enhancements. Journal Of Neuroscience 2023, 43: 7198-7212. PMID: 37813570, PMCID: PMC10601369, DOI: 10.1523/jneurosci.0916-23.2023.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingMemory enhancementEpisodic memoryAssociative memoryEpisodic memory encodingBrain regionsHigh-resolution functional magnetic resonance imagingHuman hippocampusHigh-resolution fMRIStress-related hormone cortisolHormone cortisolMemory benefitsEmotional memoryMemory encodingEmotional eventsEmotional associationsHippocampal representationsHippocampal signaturesFunctional neuroimagingHippocampal mechanismsStressful eventsFunctional connectivityHippocampal functionMemory formationSalient informationHuman REM sleep recalibrates neural activity in support of memory formation
Lendner J, Niethard N, Mander B, van Schalkwijk F, Schuh-Hofer S, Schmidt H, Knight R, Born J, Walker M, Lin J, Helfrich R. Human REM sleep recalibrates neural activity in support of memory formation. Science Advances 2023, 9: eadj1895. PMID: 37624898, PMCID: PMC10456851, DOI: 10.1126/sciadv.adj1895.Peer-Reviewed Original ResearchConceptsRapid eye movementNeural activityMemory consolidationSleep-dependent memory consolidationIn vivo two-photon calcium imagingOvernight memory consolidationRegulation of neural activityHuman REM sleepLong-term memoryTwo-photon calcium imagingBenefit memoryLack of in vivo dataBrain activityMemory formationREM sleepNeural population activityCalcium imagingEye movementsMemoryPopulation activityNeural population dynamicsScalp electroencephalographyElectroencephalographyForgettingChemogenetic regulation of the TARP-lipid interaction mimics LTP and reversibly modifies behavior
Park J, Berthoux C, Hoyos-Ramirez E, Shan L, Morimoto-Tomita M, Wang Y, Castillo P, Tomita S. Chemogenetic regulation of the TARP-lipid interaction mimics LTP and reversibly modifies behavior. Cell Reports 2023, 42: 112826. PMID: 37471228, PMCID: PMC10528344, DOI: 10.1016/j.celrep.2023.112826.Peer-Reviewed Original Research
2022
Temporal Dynamics of Competition between Statistical Learning and Episodic Memory in Intracranial Recordings of Human Visual Cortex
Sherman B, Graves K, Huberdeau D, Quraishi I, Damisah E, Turk-Browne N. Temporal Dynamics of Competition between Statistical Learning and Episodic Memory in Intracranial Recordings of Human Visual Cortex. Journal Of Neuroscience 2022, 42: 9053-9068. PMID: 36344264, PMCID: PMC9732826, DOI: 10.1523/jneurosci.0708-22.2022.Peer-Reviewed Original ResearchConceptsVisual cortexStatistical learningIntracranial recordingsStatistical learning taskBehavioural Memory TestMultivariate pattern analysisLong-term memoryExpense of memoryEncoding of informationHuman visual cortexStorage of experienceNew experiencesEpisodic memoryMemory researchMemory testFrequency taggingRapid streamGuide behaviorLearning taskNew predictive relationshipNeural predictionHuman intracranial EEGWeak expectationsNeural activityMemory formation
2021
Effects of SSRI treatment on GABA and glutamate levels in an associative relearning paradigm
Spurny B, Vanicek T, Seiger R, Reed MB, Klöbl M, Ritter V, Unterholzner J, Godbersen GM, Silberbauer LR, Pacher D, Klug S, Konadu ME, Gryglewski G, Trattnig S, Bogner W, Lanzenberger R. Effects of SSRI treatment on GABA and glutamate levels in an associative relearning paradigm. NeuroImage 2021, 232: 117913. PMID: 33657450, PMCID: PMC7610796, DOI: 10.1016/j.neuroimage.2021.117913.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsGamma-aminobutyric acidMajor depressive disorderSerotonin reuptake inhibitorsSSRI treatmentPlacebo administrationReuptake inhibitorsGlutamatergic functionGlutamatergic neurotransmissionDepressive disorderNeuroplastic effectsSerotonergic systemNeurotransmitter systemsHealthy subjectsPsychiatric disordersImpaired cognitive flexibilityBrain regionsNeurotransmitter concentrationsCognitive functionWidespread symptomsMemory formationLast dayDisordersDownstream effectsTreatment
2019
Hippocampal GABA levels correlate with retrieval performance in an associative learning paradigm
Spurny B, Seiger R, Moser P, Vanicek T, Reed MB, Heckova E, Michenthaler P, Basaran A, Gryglewski G, Klöbl M, Trattnig S, Kasper S, Bogner W, Lanzenberger R. Hippocampal GABA levels correlate with retrieval performance in an associative learning paradigm. NeuroImage 2019, 204: 116244. PMID: 31606475, PMCID: PMC7610791, DOI: 10.1016/j.neuroimage.2019.116244.Peer-Reviewed Original ResearchConceptsHippocampal GABA levelsGABA levelsLong-term depressionLong-term potentiationHealthy participantsChanges of GABAMain inhibitory neurotransmitterMulti-voxel magnetic resonance spectroscopyMemory formationBaseline GABA levelsLongitudinal study designGlutamatergic systemInhibitory neurotransmitterNeuroplastic processesGlutamate concentrationNeural plasticityStudy designGABAAssociative learning paradigmThalamusHippocampusHuman brainInsulaNeurochemical underpinningsBrainEmergence of preconfigured and plastic time-compressed sequences in early postnatal development
Farooq U, Dragoi G. Emergence of preconfigured and plastic time-compressed sequences in early postnatal development. Science 2019, 363: 168-173. PMID: 30630930, PMCID: PMC6794005, DOI: 10.1126/science.aav0502.Peer-Reviewed Original ResearchConceptsCritical cognitive functionsEpisodic memory formationHippocampal neuronal ensemblesMemory episodesCognitive functionMemory formationPostnatal week 4Postnatal week 3Neuronal ensemblesEarly postnatal developmentElectrophysiological activityNaïve ratsWeek 4Hippocampal neuronsPostnatal developmentWeek 3Eye openingFirst dayEncodingSequential patternsLinear environmentSleepReplay
2017
VGF and its C-terminal peptide TLQP-62 regulate memory formation and depressive behavior via a BDNF-TrkB-dependent mechanism
Lin W, Jiang C, Sadahiro M, Bozdagi O, Vulchanova L, Russo S, Alberini C, Salton S. VGF and its C-terminal peptide TLQP-62 regulate memory formation and depressive behavior via a BDNF-TrkB-dependent mechanism. Neuropeptides 2017, 65: 129. DOI: 10.1016/j.npep.2017.02.005.Peer-Reviewed Original ResearchA connectome of a learning and memory center in the adult Drosophila brain
Takemura SY, Aso Y, Hige T, Wong A, Lu Z, Xu CS, Rivlin PK, Hess H, Zhao T, Parag T, Berg S, Huang G, Katz W, Olbris DJ, Plaza S, Umayam L, Aniceto R, Chang LA, Lauchie S, Ogundeyi O, Ordish C, Shinomiya A, Sigmund C, Takemura S, Tran J, Turner GC, Rubin GM, Scheffer LK. A connectome of a learning and memory center in the adult Drosophila brain. ELife 2017, 6: e26975. PMID: 28718765, PMCID: PMC5550281, DOI: 10.7554/elife.26975.Peer-Reviewed Original ResearchConceptsMB output neuronsDopaminergic neuronsKenyon cellsΑ-lobeMushroom bodiesAdult Drosophila brainUnderlying neuronal circuitsDirect synapseSlow depolarizationNeuronal circuitsSynaptic connectionsMemory centerDrosophila brainSynapsesNeuronsMemory formationOutput neuronsMajor siteSensory informationDAN activationSparse activitySensory modalitiesMemory recallUnanticipated classBrain
2016
Activation of α7 nicotinic acetylcholine receptors facilitates long-term potentiation at the hippocampal-prefrontal cortex synapses in vivo
Stoiljkovic M, Kelley C, Nagy D, Hurst R, Hajós M. Activation of α7 nicotinic acetylcholine receptors facilitates long-term potentiation at the hippocampal-prefrontal cortex synapses in vivo. European Neuropsychopharmacology 2016, 26: 2018-2023. PMID: 27866776, DOI: 10.1016/j.euroneuro.2016.11.003.Peer-Reviewed Original ResearchConceptsHippocampal-medial prefrontal cortex pathwayHippocampal-prefrontal cortex pathwayLong-term potentiationPrefrontal cortex pathwayCognitive processesCortex pathwayCognitive effectsMnemonic functionsCognitive functionMemory formationNeurophysiological effectsΑ7-nAChR activationNAChR activationΑ7 nAChRsHippocampal long-term potentiationSubiculum regionsΑ7 nicotinic acetylcholine receptorNicotinic acetylcholine receptorsMale ratsSaline controlsSynaptic transmissionBrain slicesTetanic stimulationAcetylcholine receptorsSynaptic plasticityCaMKII Phosphorylation of TARPγ-8 Is a Mediator of LTP and Learning and Memory
Park J, Chávez AE, Mineur YS, Morimoto-Tomita M, Lutzu S, Kim KS, Picciotto MR, Castillo PE, Tomita S. CaMKII Phosphorylation of TARPγ-8 Is a Mediator of LTP and Learning and Memory. Neuron 2016, 92: 75-83. PMID: 27667007, PMCID: PMC5059846, DOI: 10.1016/j.neuron.2016.09.002.Peer-Reviewed Original ResearchConceptsCaMKII phosphorylation siteCaMKII substratePhosphorylation sitesDependent protein kinase IIProtein kinase IIReceptor-dependent activationNMDA receptor-dependent activationProtein phosphorylationAMPAR-mediated transmissionKinase IICaMKII-dependent enhancementLong-term potentiationCaMKII phosphorylationCellular mechanismsPhosphorylationMolecular targetsAMPA receptorsCrucial mediatorSynaptic plasticityMemory formationSynaptic insertionEssential stepSynaptic transmissionActivity-dependent strengtheningBasal transmission
2015
VGF and Its C-Terminal Peptide TLQP-62 Regulate Memory Formation in Hippocampus via a BDNF-TrkB-Dependent Mechanism
Lin WJ, Jiang C, Sadahiro M, Bozdagi O, Vulchanova L, Alberini CM, Salton SR. VGF and Its C-Terminal Peptide TLQP-62 Regulate Memory Formation in Hippocampus via a BDNF-TrkB-Dependent Mechanism. Journal Of Neuroscience 2015, 35: 10343-10356. PMID: 26180209, PMCID: PMC4502270, DOI: 10.1523/jneurosci.0584-15.2015.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAvoidance LearningBrainBrain-Derived Neurotrophic FactorConditioning, PsychologicalDown-RegulationEnzyme ActivatorsEnzyme InhibitorsExcitatory Postsynaptic PotentialsFlavanonesGreen Fluorescent ProteinsIn Vitro TechniquesMaleMemoryMiceMice, Inbred C57BLMice, TransgenicNerve Growth FactorsNeuronsNeuropeptidesPeptidesRatsRats, Long-EvansReceptor, trkBConceptsVGF-derived peptide TLQP-62BDNF-TrkB signalingTrkB receptor signalingTLQP-62BDNF-TrkBHippocampal memory consolidationMemory formationVGF expressionActivity-dependent BDNF secretionMemory consolidationReceptor signalingLong-term memory formationSecretion of BDNFBDNF/TrkBAlternative treatment modalitySynaptic plasticity markersHippocampal slice preparationAdult mouse hippocampusExpression of VGFImpaired fear memoryImpairs memory formationSubsequent CREB phosphorylationBDNF secretionFear memory formationTrkB receptorsProduction of IL-10 by CD4+ regulatory T cells during the resolution of infection promotes the maturation of memory CD8+ T cells
Laidlaw BJ, Cui W, Amezquita RA, Gray SM, Guan T, Lu Y, Kobayashi Y, Flavell RA, Kleinstein SH, Craft J, Kaech SM. Production of IL-10 by CD4+ regulatory T cells during the resolution of infection promotes the maturation of memory CD8+ T cells. Nature Immunology 2015, 16: 871-879. PMID: 26147684, PMCID: PMC4713030, DOI: 10.1038/ni.3224.Peer-Reviewed Original ResearchMeSH KeywordsAdoptive TransferAnimalsCD8-Positive T-LymphocytesDendritic CellsFlow CytometryGene Expression ProfilingHost-Pathogen InteractionsImmunologic MemoryInflammationInterleukin-10Lymphocytic ChoriomeningitisLymphocytic choriomeningitis virusMice, Inbred C57BLMice, KnockoutReverse Transcriptase Polymerase Chain ReactionT-Lymphocytes, RegulatoryLearning and Memory
Levitan I, Kaczmarek L. Learning and Memory. 2015, 489-528. DOI: 10.1093/med/9780199773893.003.0019.ChaptersSimple nervous systemLong-term depressionLong-term potentiationMolecular mechanismsEnormous diversityNormal developmentCellular mechanismsNervous systemPresynaptic terminalsMost nervous systemsCyclic AMPSynaptic scalingPathwayMemory formationPlasticityPostsynaptic receptorsSynaptic taggingSynaptic connectionsLong-term phaseReduced preparationsDiversitySpike-timing dependent plasticityMechanismSynapseReceptors
2014
Memory Enhancement by Targeting Cdk5 Regulation of NR2B
Plattner F, Hernández A, Kistler TM, Pozo K, Zhong P, Yuen EY, Tan C, Hawasli AH, Cooke SF, Nishi A, Guo A, Wiederhold T, Yan Z, Bibb JA. Memory Enhancement by Targeting Cdk5 Regulation of NR2B. Neuron 2014, 81: 1070-1083. PMID: 24607229, PMCID: PMC4010123, DOI: 10.1016/j.neuron.2014.01.022.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCells, CulturedCyclin-Dependent Kinase 5FemaleHippocampusMaleMemoryMemory DisordersMiceMice, Inbred C57BLMice, KnockoutMolecular Sequence DataNeuronal PlasticityNeuronsOrgan Culture TechniquesPhosphorylationRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateSynaptic TransmissionConceptsCell surface expressionReceptor cell surface expressionCyclin-dependent kinase 5Cdk5 regulationN-methyl-D-aspartate receptorsRegulatory mechanismsKinase 5NR2B functionSurface expressionNMDAR functionSubunit NR2BSynaptic plasticityEnhancerFundamental roleRegulationMemory formationNMDAR subunit NR2BCognitive enhancersValid treatment strategyPrime targetSynaptic transmissionNR2B phosphorylationNR2BPhosphorylationSurface levelActivation-triggered subunit exchange between CaMKII holoenzymes facilitates the spread of kinase activity
Stratton M, Lee IH, Bhattacharyya M, Christensen SM, Chao LH, Schulman H, Groves JT, Kuriyan J. Activation-triggered subunit exchange between CaMKII holoenzymes facilitates the spread of kinase activity. ELife 2014, 3: e01610. PMID: 24473075, PMCID: PMC3901001, DOI: 10.7554/elife.01610.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateBinding SitesCalcium-Calmodulin-Dependent Protein Kinase Type 2CalmodulinCatalytic DomainEnzyme ActivationEnzyme StabilityHoloenzymesHumansKineticsMicroscopy, FluorescenceMolecular Docking SimulationMolecular Dynamics SimulationPhosphorylationProtein BindingProtein Structure, QuaternaryProtein SubunitsRecombinant ProteinsSignal TransductionThreonineConceptsExchange of subunitsActivation of CaMKIICalcium-independent phosphorylationRegulatory segmentNew subunitsCaMKII holoenzymeThr-305Subunit exchangeKinase activityHoloenzymeNeuronal signalingCentral hubCaMKIIPhosphorylationSubunitsMemory formationActivationMolecular dynamics simulationsUnactivated onesDodecamericSignalingCalmodulinInteractsResiduesMicroscopy techniques
2012
Complementary attentional components of successful memory encoding
Turk-Browne NB, Golomb JD, Chun MM. Complementary attentional components of successful memory encoding. NeuroImage 2012, 66: 553-562. PMID: 23108276, PMCID: PMC3594515, DOI: 10.1016/j.neuroimage.2012.10.053.Peer-Reviewed Original ResearchConceptsSubsequent long-term memoryRole of attentionSuccessful memory encodingRight temporoparietal junctionRight of fixationVentral attention networkLong-term memoryMemory successAttentional facilitationFace cuesPerceptual processingAttentional componentsUncued locationsMemory encodingSpatial attentionFacilitated processingLater memoryTemporoparietal junctionScene stimuliFMRI designMemory failuresGreater activityParahippocampal cortexAttention networkMemory formationThe tyrosine phosphatase STEP constrains amygdala-dependent memory formation and neuroplasticity
Olausson P, Venkitaramani D, Moran T, Salter M, Taylor J, Lombroso P. The tyrosine phosphatase STEP constrains amygdala-dependent memory formation and neuroplasticity. Neuroscience 2012, 225: 1-8. PMID: 22885232, PMCID: PMC3725644, DOI: 10.1016/j.neuroscience.2012.07.069.Peer-Reviewed Original ResearchMeSH KeywordsAmygdalaAnalysis of VarianceAnimalsBiophysicsConditioning, OperantElectric StimulationExcitatory Postsynaptic PotentialsFearMaleMAP Kinase Signaling SystemMemoryMiceMice, Inbred C57BLMice, TransgenicNeuronal PlasticityPatch-Clamp TechniquesProtein Tyrosine Phosphatases, Non-ReceptorReinforcement ScheduleReinforcement, PsychologyConceptsSynaptic plasticityExperience-dependent synaptic plasticityAspartic acid (NMDA) receptorsMemory formationLong-term potentiationAdult neuroplasticityAmygdala-dependent memory formationPharmacological treatmentKO miceExperience-induced neuroplasticityTyrosine phosphatase STEPNR2B subunitLateral amygdalaBrain regionsTyrosine kinase FynAcid receptorsStriatal-enriched protein tyrosine phosphataseNeuroplasticityMiceERK phosphorylationReceptor internalizationERK signalingKinase 1/2Detectable expressionSTEP KO miceProlyl Endopeptidase-Deficient Mice Have Reduced Synaptic Spine Density in the CA1 Region of the Hippocampus, Impaired LTP, and Spatial Learning and Memory
D'Agostino G, Kim JD, Liu ZW, Jeong JK, Suyama S, Calignano A, Gao XB, Schwartz M, Diano S. Prolyl Endopeptidase-Deficient Mice Have Reduced Synaptic Spine Density in the CA1 Region of the Hippocampus, Impaired LTP, and Spatial Learning and Memory. Cerebral Cortex 2012, 23: 2007-2014. PMID: 22767632, PMCID: PMC3841400, DOI: 10.1093/cercor/bhs199.Peer-Reviewed Original ResearchConceptsSynaptic spine densitySpine densityCA1 regionProlyl endopeptidaseHippocampal long-term potentiationLong-term potentiationHippocampal-mediated learningImpaired LTPWild-type controlsSpatial memory formationHippocampal plasticityCognitive impairmentPharmacological manipulationNeurodegenerative disordersSpatial learningMemory formationHippocampusPossible roleMicePhysiological functionsSerine proteasesBehavioral approachPotentiationDiseaseNeuropeptides
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