2013
Prolonged hemodynamic response during incidental facial emotion processing in inter-episode bipolar I disorder
Rosenfeld ES, Pearlson GD, Sweeney JA, Tamminga CA, Keshavan MS, Nonterah C, Stevens MC. Prolonged hemodynamic response during incidental facial emotion processing in inter-episode bipolar I disorder. Brain Imaging And Behavior 2013, 8: 73-86. PMID: 23975275, PMCID: PMC3944373, DOI: 10.1007/s11682-013-9246-z.Peer-Reviewed Original ResearchConceptsFMRI studyDorsolateral prefrontal cortex responsesAutomatic emotion regulationAffectively salient stimuliFacial emotion processingGender discrimination taskBrain regionsRemitted bipolar disorderPrefrontal cortex responsesResidual mood symptomsPrefrontal cortex regionsDiagnostic group differencesVentromedial prefrontal cortex regionsCortex brain regionsAngry expressionsEmotion regulationEmotion processingEmotional processingBrain activationTask performanceHemodynamic responseEmotional reactionsBipolar disorderBipolar IPrefrontal cortexError processing in current and former cocaine users
Castelluccio BC, Meda SA, Muska CE, Stevens MC, Pearlson GD. Error processing in current and former cocaine users. Brain Imaging And Behavior 2013, 8: 87-96. PMID: 23949893, PMCID: PMC3925762, DOI: 10.1007/s11682-013-9247-y.Peer-Reviewed Original ResearchConceptsFormer cocaine usersError processingSupramarginal gyrusCocaine usersBOLD responseRight inferior parietal lobuleAspects of impulsivityAbstinent cocaine usersCocaine abuse/dependenceInferior parietal lobuleCocaine-dependent individualsCurrent cocaine usersCognitive compensationNeural differencesPrepotent responsesResponse inhibitionAbuse/dependenceCorrect rejectionsSpecific deficitsBOLD activityTrait measuresMaladaptive behaviorsParietal lobuleAddictive behaviorsNeural activity
2007
A method for functional network connectivity among spatially independent resting-state components in schizophrenia
Jafri MJ, Pearlson GD, Stevens M, Calhoun VD. A method for functional network connectivity among spatially independent resting-state components in schizophrenia. NeuroImage 2007, 39: 1666-1681. PMID: 18082428, PMCID: PMC3164840, DOI: 10.1016/j.neuroimage.2007.11.001.Peer-Reviewed Original ResearchConceptsFunctional network connectivityFunctional connectivityTime courseICA time coursesHealthy controlsMagnetic resonance imaging dataHealthy individualsPatientsBrain disordersBrain regionsState fMRI dataCortical processingSchizophreniaFunctional magnetic resonance imaging (fMRI) dataSpatial independent component analysisSignificant differencesBrain networksComponent time coursesTemporal relationshipCoherent brain regionsBrainFMRI dataCourseImaging dataSeed voxels
2005
Low-dose estradiol alters brain activity
Stevens MC, Clark VP, Prestwood KM. Low-dose estradiol alters brain activity. Psychiatry Research 2005, 139: 199-217. PMID: 16084069, DOI: 10.1016/j.pscychresns.2005.04.004.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingSustained attention taskAttention taskEvent-related functional magnetic resonance imagingThree-stimulus oddball taskTasks of learningAlters brain activityEstrogen replacement therapyCortical brain regionsOddball taskBehavioral performanceBrain activityPrefrontal cortexHemodynamic activityAnterior cingulateDose estrogen replacement therapyNeural activityParietal lobeBrain regionsBrain functionReplacement therapyTaskGroup participantsDouble-blind studyMotor cortexHemispheric differences in hemodynamics elicited by auditory oddball stimuli
Stevens MC, Calhoun VD, Kiehl KA. Hemispheric differences in hemodynamics elicited by auditory oddball stimuli. NeuroImage 2005, 26: 782-792. PMID: 15955488, PMCID: PMC2759643, DOI: 10.1016/j.neuroimage.2005.02.044.Peer-Reviewed Original ResearchConceptsNovel stimuliInfrequent targetsRight hemisphereHemispheric differencesGreater right hemisphere activationTask-relevant target stimuliAuditory oddball stimuliEvent-related fMRIParietal lobe activityRight hemisphere activationFrequent standard stimuliTask-irrelevant novel stimuliPrevious neuroimaging studiesHealthy adult participantsAttentional processesNovelty processingSalient stimuliTarget stimuliOddball stimuliOddball taskNeuroimaging studiesStandard stimuliInfrequent novelLeft hemisphereHemodynamic activity