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 information
2022
Increasing stimulus similarity drives nonmonotonic representational change in hippocampus
Wammes J, Norman KA, Turk-Browne N. Increasing stimulus similarity drives nonmonotonic representational change in hippocampus. ELife 2022, 11: e68344. PMID: 34989336, PMCID: PMC8735866, DOI: 10.7554/elife.68344.Peer-Reviewed Original ResearchConceptsRepresentational changeHigh-level visual regionsShaped functionPairs of stimuliHigh-resolution fMRIStimulus similarityVisual regionsHuman participantsHippocampal learningMemoryPlasticity hypothesisCoactivationFMRIHippocampusGyrusStimuliWide enough rangeContradictory resultsParticipantsImage similarityLearningHypothesisU-shapeSimilar imagesEnough range
2020
Content-based Dissociation of Hippocampal Involvement in Prediction
Kok P, Rait LI, Turk-Browne NB. Content-based Dissociation of Hippocampal Involvement in Prediction. Journal Of Cognitive Neuroscience 2020, 32: 527-545. PMID: 31820676, PMCID: PMC6996939, DOI: 10.1162/jocn_a_01509.Peer-Reviewed Original ResearchConceptsPredictive processingAbstract shapesDomain-general processesFemale human participantsComplexity of stimuliComplex visual objectsModality of stimuliTypes of stimuliHigh-resolution fMRIDomain-specific rolesAuditory cuesPartial cuesVisual objectsHippocampal involvementBrain activityHuman participantsDistinct representationsHippocampal responsesComputational roleHippocampal functionPrevious researchStimuliCuesUnexpected orientationSuch accounts
2019
Hippocampal-neocortical interactions sharpen over time for predictive actions
Hindy NC, Avery EW, Turk-Browne NB. Hippocampal-neocortical interactions sharpen over time for predictive actions. Nature Communications 2019, 10: 3989. PMID: 31488845, PMCID: PMC6728336, DOI: 10.1038/s41467-019-12016-9.Peer-Reviewed Original ResearchConceptsBackground connectivityAction-outcome associationsVisual cortexHigh-resolution fMRICo-occurring eventsHippocampal predictionsNeural patternsV1/V2Behavioral paradigmsAction informationPrediction changesIndiscriminate bindingGreater differentiationPredictive actionCortexHippocampusFMRIWeak associationReinstatementConnectivityAssociationParadigmOutcomesRetrievalAction
2016
Linking pattern completion in the hippocampus to predictive coding in visual cortex
Hindy NC, Ng FY, Turk-Browne NB. Linking pattern completion in the hippocampus to predictive coding in visual cortex. Nature Neuroscience 2016, 19: 665-667. PMID: 27065363, PMCID: PMC4948994, DOI: 10.1038/nn.4284.Peer-Reviewed Original Research
2012
Shaping of Object Representations in the Human Medial Temporal Lobe Based on Temporal Regularities
Schapiro AC, Kustner LV, Turk-Browne NB. Shaping of Object Representations in the Human Medial Temporal Lobe Based on Temporal Regularities. Current Biology 2012, 22: 1622-1627. PMID: 22885059, PMCID: PMC3443305, DOI: 10.1016/j.cub.2012.06.056.Peer-Reviewed Original ResearchConceptsMedial temporal lobeHuman medial temporal lobeObject representationsStatistical learningTemporal lobeBlood oxygen level-dependent activityCA3/dentate gyrusMultivariate pattern analysisLevel-dependent activityHigh-resolution fMRIRepresentation of objectsPairs of objectsRepresentational similarityVisual streamInitial learningKind of representationPerirhinal cortexParahippocampal cortexTemporal regularitySingle experienceConstituent objectsTemporal structureLearningCortexPattern analysis