2023
Multiple visual objects are represented differently in the human brain and convolutional neural networks
Mocz V, Jeong S, Chun M, Xu Y. Multiple visual objects are represented differently in the human brain and convolutional neural networks. Scientific Reports 2023, 13: 9088. PMID: 37277406, PMCID: PMC10241785, DOI: 10.1038/s41598-023-36029-z.Peer-Reviewed Original ResearchConceptsObject representationsConvolutional neural networkMultiple visual objectsHuman brainRecurrent processingVisual objectsProcessing regionsSingle-unit levelObject pairsIT neuronsFMRI voxelsSingle objectConstituent objectsPrimate brainBrain dataNeural networkDifferent contextsResponse patternsObject classificationReal worldObjectsRepresentationUnit levelBrainSuch distortions
2022
Differences in the functional brain architecture of sustained attention and working memory in youth and adults
Kardan O, Stier A, Cardenas-Iniguez C, Schertz K, Pruin J, Deng Y, Chamberlain T, Meredith W, Zhang X, Bowman J, Lakhtakia T, Tindel L, Avery E, Lin Q, Yoo K, Chun M, Berman M, Rosenberg M. Differences in the functional brain architecture of sustained attention and working memory in youth and adults. PLOS Biology 2022, 20: e3001938. PMID: 36542658, PMCID: PMC9815648, DOI: 10.1371/journal.pbio.3001938.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAttentionBrainBrain MappingChildHumansMagnetic Resonance ImagingMemory, Short-TermConceptsSustained attentionFunctional brain architectureWM performanceIndividual differencesFunctional connectivityBrain architectureLater recognition memoryRecognition memoryWM modelBrain networksWMMemoryYouthAge groupsFunctional connectionsAdultsChildrenNetwork predictorAttentionPerformancePredictorsDifferencesConnectivityAbilityPredicting Identity-Preserving Object Transformations in Human Posterior Parietal Cortex and Convolutional Neural Networks
Mocz V, Vaziri-Pashkam M, Chun M, Xu Y. Predicting Identity-Preserving Object Transformations in Human Posterior Parietal Cortex and Convolutional Neural Networks. Journal Of Cognitive Neuroscience 2022, 34: 2406-2435. PMID: 36122358, PMCID: PMC9988239, DOI: 10.1162/jocn_a_01916.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain MappingHumansMagnetic Resonance ImagingNeural Networks, ComputerParietal LobeTemporal LobeConceptsOccipito-temporal cortexPosterior parietal cortexHuman posterior parietal cortexHuman occipito-temporal cortexNon-Euclidean featuresObject identityParietal cortexConvolutional neural networkPrimate ventral visual systemSuperior intraparietal sulcusVisual object informationVentral visual systemFeature changesObject responsesIntraparietal sulcusCurrent best modelVisual systemEuclidean featuresObject informationResponse of objectsPrevious researchNeural networkObject transformationCortexObject classification
2021
Predicting Identity-Preserving Object Transformations across the Human Ventral Visual Stream
Mocz V, Vaziri-Pashkam M, Chun M, Xu Y. Predicting Identity-Preserving Object Transformations across the Human Ventral Visual Stream. Journal Of Neuroscience 2021, 41: 7403-7419. PMID: 34253629, PMCID: PMC8412993, DOI: 10.1523/jneurosci.2137-20.2021.Peer-Reviewed Original Research
2015
Functional connectome fingerprinting: identifying individuals using patterns of brain connectivity
Finn ES, Shen X, Scheinost D, Rosenberg MD, Huang J, Chun MM, Papademetris X, Constable RT. Functional connectome fingerprinting: identifying individuals using patterns of brain connectivity. Nature Neuroscience 2015, 18: 1664-1671. PMID: 26457551, PMCID: PMC5008686, DOI: 10.1038/nn.4135.Peer-Reviewed Original ResearchMeSH KeywordsAdultBrainBrain MappingConnectomeFemaleHumansMagnetic Resonance ImagingMaleNerve NetNeural PathwaysYoung Adult
2014
Neural portraits of perception: Reconstructing face images from evoked brain activity
Cowen AS, Chun MM, Kuhl BA. Neural portraits of perception: Reconstructing face images from evoked brain activity. NeuroImage 2014, 94: 12-22. PMID: 24650597, PMCID: PMC4028096, DOI: 10.1016/j.neuroimage.2014.03.018.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBiometryBrainBrain MappingComputer SimulationData Interpretation, StatisticalEvoked Potentials, VisualFaceFemaleHumansImage Interpretation, Computer-AssistedMagnetic Resonance ImagingMaleModels, NeurologicalModels, StatisticalNerve NetPattern Recognition, VisualReproducibility of ResultsSensitivity and SpecificityStatistics as TopicConceptsBrain activityHigher-level cortical areasOccipital cortexHigher-level cortical regionsEarly visual cortexFace imagesTraining facesIndividual face imagesFace perceptionPerceptual informationTest faceVisual experienceVisual inputDistributed patternNeural activityCortical networksRecent neuroimaging advancesCortical regionsVisual cortexCortical areasNeuroimaging advancesRetinotopic mappingNeural reconstructionValidation measuresCortex
2006
Visual Quality Determines the Direction of Neural Repetition Effects
Turk-Browne N, Yi DJ, Leber, Chun M. Visual Quality Determines the Direction of Neural Repetition Effects. Cerebral Cortex 2006, 17: 425-433. PMID: 16565294, DOI: 10.1093/cercor/bhj159.Peer-Reviewed Original ResearchConceptsVentral visual areasRepetition effectsVisual areasNovel stimuliMagnetic resonance imaging studyBlood oxygen level-dependent (BOLD) responseFunctional magnetic resonance imaging studyResonance imaging studySame brain regionsNeural repetition effectsGreater BOLD responseLevel-dependent responsesRepetition attenuationBrain regionsImaging studiesPerceptual representationsRepetition enhancementLow-contrast scenesBehavioral performanceNeurophysiological studiesDegraded inputBOLD responseLow responseVisual thresholdExact opposite effect
2005
Response-specific sources of dual-task interference in human pre-motor cortex
Marois R, Larson J, Chun M, Shima D. Response-specific sources of dual-task interference in human pre-motor cortex. Psychological Research 2005, 70: 436-447. PMID: 16283409, DOI: 10.1007/s00426-005-0022-6.Peer-Reviewed Original ResearchMeSH KeywordsAdultAttentionBrain MappingColor PerceptionDominance, CerebralFemaleFrontal LobeFunctional LateralityHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMotor CortexNerve NetOxygenParietal LobePattern Recognition, VisualPsychomotor PerformanceReaction TimeRefractory Period, PsychologicalConceptsPsychological refractory periodPre-motor cortexResponse selectionBrain activityDual-task manipulationsDual-task situationsDual-task interferenceDual-task costsInferior frontal cortexParieto-frontal areasDual-task conditionsDorsal pre-motor cortexFMRI brain activityDistinct motor responsesNeural locusSecond stimulusPerceptual visibilityMotor responseBrain regionsStimuliFrontal cortexCentral limitationRapid successionCortexSuch performance limitationsAttentional Modulation of Learning-Related Repetition Attenuation Effects in Human Parahippocampal Cortex
Yi D, Chun M. Attentional Modulation of Learning-Related Repetition Attenuation Effects in Human Parahippocampal Cortex. Journal Of Neuroscience 2005, 25: 3593-3600. PMID: 15814790, PMCID: PMC6725381, DOI: 10.1523/jneurosci.4677-04.2005.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingVisual informationNeural activityHuman parahippocampal cortexLearning-related changesParahippocampal place areaImportant issue concernsRepetition attenuationPerceptual processingPerceptual stimuliAttentional modulationPerceptual inputInitial encodingPerceptual experienceRepetition suppressionTask demandsMemory tracesPlace areaNovel stimuliAdaptation effectsParahippocampal cortexNeural circuitryBiological visionVisual systemAdaptive balance
2004
A Common Parieto-Frontal Network Is Recruited Under Both Low Visibility and High Perceptual Interference Conditions
Marois R, Chun M, Gore J. A Common Parieto-Frontal Network Is Recruited Under Both Low Visibility and High Perceptual Interference Conditions. Journal Of Neurophysiology 2004, 92: 2985-2992. PMID: 15486425, DOI: 10.1152/jn.01061.2003.Peer-Reviewed Original ResearchConceptsParieto-frontal networkTarget letterPerceptual visibilityEvent-related fMRI experimentLetter identification taskSame neural mechanismsInterference conditionsPerceptual interferencePerceptual manipulationsVisual attentionNeural mechanismsIdentification taskFMRI experimentThreshold itemsFrontal cortexLuminance contrastDistractorsChallenging conditionsAttentionTaskCortexItemsLetterNeural fate of ignored stimuli: dissociable effects of perceptual and working memory load
Yi D, Woodman G, Widders D, Marois R, Chun M. Neural fate of ignored stimuli: dissociable effects of perceptual and working memory load. Nature Neuroscience 2004, 7: 992-996. PMID: 15286791, DOI: 10.1038/nn1294.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingMemory loadDissociable effectsHuman ventral visual cortexVentral visual cortexCategory-selective areasTypes of tasksUnattended stimuliPerceptual difficultiesVisual eventsNeural processingBackground stimuliParahippocampal cortexVisual informationNumber of objectsTarget taskVisual cortexBackground sceneStimuliSubject engagesFunctional blindnessTaskCortexProcessingMagnetic resonance imagingThe Neural Fate of Consciously Perceived and Missed Events in the Attentional Blink
Marois R, Yi D, Chun M. The Neural Fate of Consciously Perceived and Missed Events in the Attentional Blink. Neuron 2004, 41: 465-472. PMID: 14766184, DOI: 10.1016/s0896-6273(04)00012-1.Peer-Reviewed Original ResearchConceptsParahippocampal place areaMedial temporal cortexConscious reportTemporal cortexAttentional blink paradigmStages of visionCapacity-limited stageHigh-level scene representationsFrontal cortexAttentional bottleneckAttentional blinkAttention proposeCognitive modelFace targetsPPA activationVisual processingVisual perceptionPlace areaVisual worldRapid categorizationVisual inputScene targetsScene representationInitial categorizationCortex
2001
Contextual guidance of attention
Olson I, Chun M, Allison T. Contextual guidance of attention. Brain 2001, 124: 1417-1425. PMID: 11408336, DOI: 10.1093/brain/124.7.1417.Peer-Reviewed Original ResearchConceptsVisual cortexApical dendritesPyramidal cellsEarly visual areasModulation of activityStriate cortexVisual processingExtrastriate cortexVisual areasCortexNeurophysiological studiesFeedback modulationEvent-related potentialsEarly areasV1PatientsEarly activityLater stagesAttentive searchActivityBrain
2000
Neural Correlates of the Attentional Blink
Marois R, Chun M, Gore J. Neural Correlates of the Attentional Blink. Neuron 2000, 28: 299-308. PMID: 11087002, DOI: 10.1016/s0896-6273(00)00104-5.Peer-Reviewed Original ResearchConceptsAttentional blinkFunctional magnetic resonance imagingFrontal cortex activationSame neural circuitsAttentional controlDistractor interferenceAttentional capacityNeural correlatesVisual eventsAttended targetParietofrontal networkCortex activationVisual informationVisual fieldNeural circuitsNeighboring targetsBlinkFunctional blindnessSevere impairmentMagnetic resonance imagingResonance imagingCorrelatesImpairmentProcessing