2008
Detection of time-varying signals in event-related fMRI designs
Grinband J, Wager TD, Lindquist M, Ferrera VP, Hirsch J. Detection of time-varying signals in event-related fMRI designs. NeuroImage 2008, 43: 509-520. PMID: 18775784, PMCID: PMC2654219, DOI: 10.1016/j.neuroimage.2008.07.065.Peer-Reviewed Original ResearchConceptsHemodynamic impulse response functionEvent-related fMRI designRapid event-related designsEvent-related designHuman response timeCognitive controlCognitive eventsResponse timeFMRI designBrain activityHemodynamic responseStimulus durationNeural activityFMRI dataMotor responseBrief impulsesBrief epochsProcessing durationStimulus intensityInterpretability of resultsType of activityCritical variablesElectrophysiological studiesNeuronal activityRegression analysisLeptin reverses weight loss–induced changes in regional neural activity responses to visual food stimuli
Rosenbaum M, Sy M, Pavlovich K, Leibel RL, Hirsch J. Leptin reverses weight loss–induced changes in regional neural activity responses to visual food stimuli. Journal Of Clinical Investigation 2008, 118: 2583-2591. PMID: 18568078, PMCID: PMC2430499, DOI: 10.1172/jci35055.Peer-Reviewed Original ResearchConceptsMiddle frontal gyrusNeural activityFood cuesFrontal gyrusFood-related visual cuesWeight lossFood intakeWeight loss-induced changesVisual food cuesVisual food stimuliMiddle temporal gyrusRelative leptin deficiencyWeight-reduced stateDaily subcutaneous injectionsBody weight maintenanceCognitive controlFood stimuliTemporal gyrusVisual cuesLeptin deficiencyObese subjectsWeight maintenanceLingual gyrusClinical managementFunctional MRI
2007
Dissociable Neural Systems Resolve Conflict from Emotional versus Nonemotional Distracters
Egner T, Etkin A, Gale S, Hirsch J. Dissociable Neural Systems Resolve Conflict from Emotional versus Nonemotional Distracters. Cerebral Cortex 2007, 18: 1475-1484. PMID: 17940084, DOI: 10.1093/cercor/bhm179.Peer-Reviewed Original ResearchConceptsTask-relevant stimuliEmotional distractersTask-irrelevant emotional stimuliAnterior cingulateSensory cortexTask-irrelevant stimuliLateral prefrontal cortexDorsal anterior cingulateFunctional magnetic resonanceRostral anterior cingulateCognitive controlConflict monitoringEmotional stimuliStimulus representationsAmygdalar responsesEmotional controlEnhanced processingResolve ConflictsEmotional conflictNeuroanatomical networksPrefrontal cortexDistractersResolution of conflictsBiasing mechanismHuman brainNeural Dynamics of Rejection Sensitivity
Kross E, Egner T, Ochsner K, Hirsch J, Downey G. Neural Dynamics of Rejection Sensitivity. Journal Of Cognitive Neuroscience 2007, 19: 945-956. PMID: 17536965, DOI: 10.1162/jocn.2007.19.6.945.Peer-Reviewed Original ResearchConceptsRejection sensitivityCognitive controlRS individualsDorsal frontal regionsFunctional magnetic resonanceThemes of rejectionRejection stimuliAffective stimuliEmotional appraisalEmotional processingNegative valenceIndividual differencesPrefrontal structuresNeural dynamicsDistress ratingsFrontal regionsRepresentational paintingsBrain regionsR participantsStimuliPositive imageDifferential recruitmentIndividual responsesParticipantsInterest levelSeparate conflict-specific cognitive control mechanisms in the human brain
Egner T, Delano M, Hirsch J. Separate conflict-specific cognitive control mechanisms in the human brain. NeuroImage 2007, 35: 940-948. PMID: 17276088, DOI: 10.1016/j.neuroimage.2006.11.061.Peer-Reviewed Original ResearchConceptsIrrelevant stimulus featuresCognitive controlStimulus featuresModulation of activityColor-naming Stroop taskCognitive control mechanismsCognitive control systemOptimal task performanceHuman brainLevel-dependent responsesContext-sensitive mannerStroop taskResolution of stimuliStimulus representationsTask performanceParietal cortexMotor programmingPremotor cortexInformation processingControl resourcesConflict resolutionSource of conflictResolution strategiesStimuliCentral resource
2005
Cognitive control mechanisms resolve conflict through cortical amplification of task-relevant information
Egner T, Hirsch J. Cognitive control mechanisms resolve conflict through cortical amplification of task-relevant information. Nature Neuroscience 2005, 8: 1784-1790. PMID: 16286928, DOI: 10.1038/nn1594.Peer-Reviewed Original ResearchMeSH KeywordsAdultAttentionBehaviorBrain MappingCerebral CortexCerebrovascular CirculationCognitionConflict, PsychologicalDecision MakingFemaleFunctional LateralityHumansMagnetic Resonance ImagingMaleNerve NetNeural PathwaysNeuropsychological TestsPattern Recognition, VisualPhotic StimulationPrefrontal CortexReaction TimeVisual CortexVolitionConceptsTask-relevant informationCognitive control mechanismsTask-irrelevant informationCognitive controlTask-relevant stimulus informationCognitive control systemConflict resolutionDorsolateral prefrontal cortexHuman visual cortexAttentional biasingFace processingPerceptual processingFace stimuliStroop taskNeural representationStimulus informationResponse tendenciesOccurrence of conflictsHigh conflictPrefrontal cortexProminent modelsCortical responsesTrial levelCortical amplificationVisual cortexIntentional false responding shares neural substrates with response conflict and cognitive control
Nuñez JM, Casey BJ, Egner T, Hare T, Hirsch J. Intentional false responding shares neural substrates with response conflict and cognitive control. NeuroImage 2005, 25: 267-277. PMID: 15734361, DOI: 10.1016/j.neuroimage.2004.10.041.Peer-Reviewed Original ResearchMeSH KeywordsAdultArousalAutobiographies as TopicBrainCaudate NucleusConflict, PsychologicalDeceptionDominance, CerebralFemaleGyrus CinguliHumansImage Processing, Computer-AssistedIntentionInternal-External ControlMagnetic Resonance ImagingMaleNerve NetNeural InhibitionParietal LobePersonality InventoryPrefrontal CortexReaction TimeTemporal LobeThalamic NucleiConceptsDorsolateral prefrontal cortexCognitive controlResponse conflictAnterior cingulate cortexPsychopathic Personality InventoryCingulate cortexSelf-report personality measuresSelf-relevant stimuliFalse responsesAmount of conflictPosterior cingulate cortexResponse inhibitionNeural substratesCaudate activityMesial prefrontalNeural effectsPersonality measuresCognitive functionPersonal relevancePrefrontal cortexAnterior cingulateNeural activityAutobiographical responsesProcess of interferenceResponse conditionsThe neural correlates and functional integration of cognitive control in a Stroop task
Egner T, Hirsch J. The neural correlates and functional integration of cognitive control in a Stroop task. NeuroImage 2005, 24: 539-547. PMID: 15627596, DOI: 10.1016/j.neuroimage.2004.09.007.Peer-Reviewed Original ResearchConceptsCognitive controlConflict adaptationPsychophysiological interaction analysisStroop taskNeural correlatesFrontal gyrusPrefrontal cortexDistinct fronto-parietal networksEvent-related fMRI dataLow-conflict trialsHigh-conflict trialsFronto-parietal networkLateral prefrontal cortexMiddle frontal gyrusBilateral inferior frontalSuperior frontal gyrusContext-specific modulationInterference taskResponse conflictCognitive tasksConflict effectMotor processesInferior frontalNeural substratesTask performance