2021
Mapping data‐driven individualized neurobehavioral phenotypes in heavy alcohol drinkers
DeMartini KS, Gueorguieva R, Pearlson G, Krishnan‐Sarin S, Anticevic A, Ji LJ, Krystal JH, O’Malley S. Mapping data‐driven individualized neurobehavioral phenotypes in heavy alcohol drinkers. Alcohol Clinical And Experimental Research 2021, 45: 841-853. PMID: 33605439, DOI: 10.1111/acer.14580.Peer-Reviewed Original ResearchMeSH KeywordsAdultAdverse Childhood ExperiencesAlcohol DrinkingDepressionFactor Analysis, StatisticalFemaleHumansImpulsive BehaviorMaleMotivationPhenotypeYoung AdultConceptsConfirmatory factor analysisIncentive salienceNeurofunctional domainsAlcohol use disorderExecutive functionLatent factorsPhysical neglectSelf-report measuresChildhood emotional abuseUse disordersChildhood physical neglectEarly life stressSignificant predictorsMultiple significant predictorsMultiple causes modelCurrent AUDNegative emotionalityAddiction developmentEmotional abuseChildhood neglectFactor structureDrinking frequencySalienceCause modelFactor analysis
2014
Preliminary analysis of positive and negative syndrome scale in ketamine-associated psychosis in comparison with schizophrenia
Xu K, Krystal JH, Ning Y, Chen da C, He H, Wang D, Ke X, Zhang X, Ding Y, Liu Y, Gueorguieva R, Wang Z, Limoncelli D, Pietrzak RH, Petrakis IL, Zhang X, Fan N. Preliminary analysis of positive and negative syndrome scale in ketamine-associated psychosis in comparison with schizophrenia. Journal Of Psychiatric Research 2014, 61: 64-72. PMID: 25560772, PMCID: PMC4445679, DOI: 10.1016/j.jpsychires.2014.12.012.Peer-Reviewed Original ResearchConceptsKetamine groupNegative Syndrome ScaleSchizophrenia groupSyndrome ScaleN-methyl-D-aspartate (NMDA) glutamate receptor antagonistGlutamate receptor antagonistsPotential confounding factorsEarly course schizophreniaSymptom dimensionsSymptoms of schizophreniaReceptor antagonistChronic schizophreniaHealthy subjectsKetamine abuseSchizophrenia psychosisSchizophrenia patientsConfounding factorsSymptom severitySymptomsInpatientsSchizophreniaPsychosisKetamine usersDissociation symptomsPrincipal component factor analysisDimensional structure of DSM-5 posttraumatic stress disorder symptoms: results from the National Health and Resilience in Veterans Study.
Tsai J, Harpaz-Rotem I, Armour C, Southwick SM, Krystal JH, Pietrzak RH. Dimensional structure of DSM-5 posttraumatic stress disorder symptoms: results from the National Health and Resilience in Veterans Study. The Journal Of Clinical Psychiatry 2014, 76: 546-53. PMID: 25562376, DOI: 10.4088/jcp.14m09091.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderLifetime posttraumatic stress disorderHealth-related functioningMental health-related functioningDSM-5 posttraumatic stress disorderUS veteransSymptom clustersPTSD symptom clustersNational HealthVeterans StudyPTSD symptomsQuality of lifeDysphoric Arousal modelPosttraumatic stress disorder (PTSD) symptomsDSM-5 posttraumatic stress disorder symptomsDSM-5 PTSD symptom clustersHealth outcomesFemale veteransSuicidal ideationDSM-5 PTSD symptomsStress disorderSymptomsDisorder symptomsPTSD symptomatologyVeteransElucidating the transdiagnostic dimensional structure of trauma-related psychopathology: Findings from VA cooperative study 504 – risperidone treatment for military service related chronic post traumatic stress disorder
Pietrzak RH, Rosenheck RA, Cramer JA, Vessichio JC, Tsai J, Southwick SM, Krystal JH, Group F. Elucidating the transdiagnostic dimensional structure of trauma-related psychopathology: Findings from VA cooperative study 504 – risperidone treatment for military service related chronic post traumatic stress disorder. Journal Of Affective Disorders 2014, 172: 331-336. PMID: 25451434, DOI: 10.1016/j.jad.2014.10.025.Peer-Reviewed Original ResearchPsychometrically Improved, Abbreviated Versions of Three Classic Measures of Impulsivity and Self-Control
Morean ME, DeMartini KS, Leeman RF, Pearlson GD, Anticevic A, Krishnan-Sarin S, Krystal JH, O’Malley S. Psychometrically Improved, Abbreviated Versions of Three Classic Measures of Impulsivity and Self-Control. Psychological Assessment 2014, 26: 1003-1020. PMID: 24885848, PMCID: PMC4152397, DOI: 10.1037/pas0000003.Peer-Reviewed Original ResearchConceptsBrief Self-Control ScaleSelf-reported impulsivityBIS/BASTest-criterion relationshipsFactor structureImpulsivity measuresMeasurement invarianceSelf-report impulsivity measuresBarratt Impulsiveness Scale-11Self-Control ScaleScalar measurement invarianceLatent factor structureGood scale propertiesComprehensive psychometric evaluationReplicable factor structureDrinking/smokingConfirmatory factor analysisAbbreviated versionAlternative factor structuresBehavioral inhibitionActivation ScalesSelf-ControlBIS-11Substance use researchSmoking outcomes
2010
Clinical significance of neurological soft signs in schizophrenia: Factor analysis of the Neurological Evaluation Scale
Sewell RA, Perry EB, Karper LP, Bell MD, Lysaker P, Goulet JL, Brenner L, Erdos J, d'Souza DC, Seibyl JP, Krystal JH. Clinical significance of neurological soft signs in schizophrenia: Factor analysis of the Neurological Evaluation Scale. Schizophrenia Research 2010, 124: 1-12. PMID: 20855185, DOI: 10.1016/j.schres.2010.08.036.Peer-Reviewed Original ResearchConceptsNeurological Evaluation ScaleAbnormal Involuntary Movement ScaleDigit Symbol Substitution TaskWisconsin Card Sorting TestNeurologic deficitsClinical significanceExtrapyramidal Symptom Rating ScaleMore extrapyramidal symptomsBarnes Akathisia ScaleDetailed clinical assessmentNeurological soft signsSymptom Rating ScaleNegative Syndrome ScaleHigher AIMS scoresEvaluation ScaleNeurological deficitsExtrapyramidal symptomsClinical correlatesDeficit syndrome schizophreniaClinical evaluationClinical assessmentAIMS scoresLower PANSSMovement ScaleSoft signs
2007
Multidimensionality of the Alcohol Withdrawal Symptom Checklist: A Factor Analysis of the Alcohol Withdrawal Symptom Checklist and CIWA‐Ar
Pittman B, Gueorguieva R, Krupitsky E, Rudenko AA, Flannery BA, Krystal JH. Multidimensionality of the Alcohol Withdrawal Symptom Checklist: A Factor Analysis of the Alcohol Withdrawal Symptom Checklist and CIWA‐Ar. Alcohol Clinical And Experimental Research 2007, 31: 612-618. PMID: 17374040, DOI: 10.1111/j.1530-0277.2007.00345.x.Peer-Reviewed Original ResearchConceptsAlcohol withdrawal syndromeCIWA-ArClinical Institute Withdrawal Assessment-AlcoholSymptom ChecklistCIWA-Ar scoresFirst study dayInpatient treatment unitAlcohol-dependent male inpatientsObserver-rated scalesAlcohol withdrawalWithdrawal syndromeTension/anxietyMale inpatientsIndependent factorsStudy daysClinical relevanceSelf-rating scaleAlcohol cravingObserver-rated measuresDiscriminative valueSelf-rated measuresInitial weeksAutonomic arousalFace validityResearch settings