2012
Examining the effect of psychopathic traits on gray matter volume in a community substance abuse sample
Cope LM, Shane MS, Segall JM, Nyalakanti PK, Stevens MC, Pearlson GD, Calhoun VD, Kiehl KA. Examining the effect of psychopathic traits on gray matter volume in a community substance abuse sample. Psychiatry Research 2012, 204: 91-100. PMID: 23217577, PMCID: PMC3536442, DOI: 10.1016/j.pscychresns.2012.10.004.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntisocial Personality DisorderBrainCognition DisordersFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedNerve Fibers, MyelinatedNeuropsychological TestsPersonality InventoryPsychiatric Status Rating ScalesRegression AnalysisResidence CharacteristicsSubstance-Related DisordersConceptsGray matter volumeMatter volumeOrbital frontal cortexMagnetic resonance imagingRight hippocampusFrontal cortexBilateral orbital frontal cortexRight anterior cingulateGray matter reductionsGray matter increasesStructural imaging studiesLimbic regionsBrain abnormalitiesRight insulaParalimbic regionsAnterior cingulateLifetime drugSubstance abuse sampleResonance imagingImaging studiesAlcohol useExploratory regression analysisRegression analysisLimbicMatter reduction
2009
Investigating the behavioral and self-report constructs of impulsivity domains using principal component analysis
Meda SA, Stevens MC, Potenza MN, Pittman B, Gueorguieva R, Andrews MM, Thomas AD, Muska C, Hylton JL, Pearlson GD. Investigating the behavioral and self-report constructs of impulsivity domains using principal component analysis. Behavioural Pharmacology 2009, 20: 390-399. PMID: 19724194, PMCID: PMC3268653, DOI: 10.1097/fbp.0b013e32833113a3.Peer-Reviewed Original ResearchMeSH KeywordsAdultBehaviorFemaleHumansImpulsive BehaviorMaleMiddle AgedPrincipal Component AnalysisPsychometricsRisk-TakingSelf ConceptSubstance-Related DisordersSurveys and QuestionnairesYoung AdultConceptsSelf-report measuresImpulsivity domainsImpulsivity constructsSelf-reported impulsivityDistinct neural systemsAspects of impulsivitySelf-report constructsSelf-reported compulsivityMeasures of impulsivityReward/punishmentConstruct of impulsivitySupplementary goalCurrent cocaine usersTemporal discountingFive-factor solutionLaboratory tasksMaladaptive behaviorsDifferent domainsImpulsivityMultidimensional constructBehavioral activationNeural systemsHuman behaviorBehavioral studiesSupplemental analyses