2004
Nicotine effects on brain function and functional connectivity in schizophrenia
Jacobsen LK, D'Souza DC, Mencl WE, Pugh KR, Skudlarski P, Krystal JH. Nicotine effects on brain function and functional connectivity in schizophrenia. Biological Psychiatry 2004, 55: 850-858. PMID: 15050867, DOI: 10.1016/j.biopsych.2003.12.023.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnalysis of VarianceAttentionBrainBrain MappingBrief Psychiatric Rating ScaleCase-Control StudiesFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMemory, Short-TermMiddle AgedNeuropsychological TestsNicotineNicotinic AgonistsReaction TimeRegression AnalysisSchizophreniaSmokeTask Performance and AnalysisVerbal LearningConceptsTask performanceFunctional connectivityFunctional magnetic resonance imaging (fMRI) scanningBrain regionsN-back taskMultiple cognitive domainsNetwork of regionsDifficult task conditionsAnterior cingulate cortexAttention loadMemory loadSelective attentionCognitive domainsTask conditionsCognitive functionCingulate cortexThalamocortical functional connectivityNicotine effectsCognitive dysfunctionBrain functionSchizophrenia patientsControl subjectsSchizophrenic subjectsMagnetic resonance imaging (MRI) scanningMental illness
2003
A Functional Magnetic Resonance Imaging Study of Bipolar Disorder: State- and Trait-Related Dysfunction in Ventral Prefrontal Cortices
Blumberg HP, Leung HC, Skudlarski P, Lacadie CM, Fredericks CA, Harris BC, Charney DS, Gore JC, Krystal JH, Peterson BS. A Functional Magnetic Resonance Imaging Study of Bipolar Disorder: State- and Trait-Related Dysfunction in Ventral Prefrontal Cortices. JAMA Psychiatry 2003, 60: 601-609. PMID: 12796223, DOI: 10.1001/archpsyc.60.6.601.Peer-Reviewed Original ResearchConceptsVentral prefrontal cortexBipolar disorderPrefrontal cortexMood statesMagnetic resonance imaging studyHealthy control subjectsAcute mood statesLeft ventral prefrontal cortexResonance imaging studySignal changesDisturbances of attentionFunctional magnetic resonance imaging studyAnterior cingulate cortexBipolar disorder IDorsal anterior cingulateEvent-related functional magnetic resonanceFunctional magnetic resonanceAcute episodeControl subjectsExaggerated increaseFunctional impairmentBlunted activationMood episodesSpecific mood statesPrefrontal abnormalities