2023
Evaluating a novel 8-factor dimensional model of PTSD in U.S. military veterans: Results from the National Health and Resilience in Veterans Study
Stiltner B, Fischer I, Duek O, Polimanti R, Harpaz-Rotem I, Pietrzak R. Evaluating a novel 8-factor dimensional model of PTSD in U.S. military veterans: Results from the National Health and Resilience in Veterans Study. Journal Of Affective Disorders 2023, 346: 303-307. PMID: 37979626, DOI: 10.1016/j.jad.2023.11.041.Peer-Reviewed Original ResearchConceptsIndex traumaPTSD symptomsNational HealthPosttraumatic stress disorder (PTSD) symptomsVeterans StudyMilitary veteransTrauma-exposed populationsClinician-administered interviewU.S. military veteransConfirmatory factor analysisDSM-5 modelStrong significant associationTrauma exposureIntrusive symptomsDisorder symptomsCombat exposureHigh riskU.S. veteransDSM-5Significant associationSymptomsInterpersonal violenceFactor analysisPTSDScarce research
2021
Binge drinking following residential treatment for posttraumatic stress disorder among veterans with and without alcohol use disorder
Meshberg-Cohen S, Gross GM, Kachadourian LK, Harpaz-Rotem I. Binge drinking following residential treatment for posttraumatic stress disorder among veterans with and without alcohol use disorder. Journal Of Psychiatric Research 2021, 143: 202-208. PMID: 34500350, DOI: 10.1016/j.jpsychires.2021.09.024.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderMilitary sexual traumaAlcohol use disorderPTSD symptom improvementResidential treatmentBinge drinkingStress disorderPTSD symptom changeResidential PTSD treatmentPTSD symptom decreaseUse disordersBinge drinking daysAlcohol-related variablesPTSD treatmentTrauma typesSexual traumaProblematic drinkingCombat exposureDrinking outcomesSymptom changeGreater likelihoodSymptom improvementBingeSymptom decreaseAlcohol use
2018
Locus of control in US combat veterans: Unique associations with posttraumatic stress disorder 5-factor model symptom clusters
Smith NB, Sippel LM, Presseau C, Rozek D, Mota N, Gordon C, Horvath M, Harpaz-Rotem I. Locus of control in US combat veterans: Unique associations with posttraumatic stress disorder 5-factor model symptom clusters. Psychiatry Research 2018, 268: 152-156. PMID: 30029062, DOI: 10.1016/j.psychres.2018.07.015.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderLocus of controlPTSD symptom clustersOverall PTSD symptomsAvoidance symptomsPTSD symptomsSymptom clustersStress disorderCombat veteransExternal locusCombat exposureCorrelates of PTSDSpecific PTSD symptom clustersTrauma-focused treatmentSelf-report measuresUS combat veteransIntervention effortsUnique associationUS military veteransExtreme scoresPotential correlatesMilitary veteransBivariate correlationsOnly avoidanceSignificant correlates
2017
Cortical thickness reduction in combat exposed U.S. veterans with and without PTSD
Wrocklage KM, Averill LA, Scott J, Averill CL, Schweinsburg B, Trejo M, Roy A, Weisser V, Kelly C, Martini B, Harpaz-Rotem I, Southwick SM, Krystal JH, Abdallah CG. Cortical thickness reduction in combat exposed U.S. veterans with and without PTSD. European Neuropsychopharmacology 2017, 27: 515-525. PMID: 28279623, PMCID: PMC5429865, DOI: 10.1016/j.euroneuro.2017.02.010.Peer-Reviewed Original ResearchConceptsClinician-Administered PTSD ScalePTSD symptom dimensionsPTSD diagnosisCombat exposureCortical thicknessSymptom dimensionsMagnetic resonance imagingPosttraumatic stress disorder (PTSD) symptomsU.S. veteransCortical thinningUnique brain regionsLeft lateral prefrontalAnxious arousalPTSD dimensionsNeural correlatesHigh-resolution magnetic resonance imagingCortical thickness reductionsLateral prefrontalPTSD symptomsDisorder symptomsCombat severityCurrent PTSDPTSD ScalePrefrontal cortexPotential confoundsCombat Exposure Severity Is Associated With Reduced Cortical Thickness in Combat Veterans: A Preliminary Report
Averill LA, Abdallah CG, Pietrzak RH, Averill CL, Southwick SM, Krystal JH, Harpaz-Rotem I. Combat Exposure Severity Is Associated With Reduced Cortical Thickness in Combat Veterans: A Preliminary Report. Chronic Stress 2017, 1: 2470547017724714. PMID: 28845475, PMCID: PMC5568834, DOI: 10.1177/2470547017724714.Peer-Reviewed Original ResearchCombat exposure severityCortical thicknessCombat exposureEarly life trauma exposureExposure severityEarly life stress exposureRostral middle frontal regionsLife stress exposureNon-PTSD groupEarly life stressStructural magnetic resonanceCombat-exposed veteransChildhood Trauma QuestionnaireCombat-exposed controlsCombat Exposure ScaleCortical thinningLeft superior temporalMiddle frontal regionsNegative correlationNeural biomarkersTreatment targetsNeural integritySuperior temporalPTSD psychopathologyChronic stress
2016
POSTTRAUMATIC STRESS SYMPTOMS AND AVERSION TO AMBIGUOUS LOSSES IN COMBAT VETERANS
Ruderman L, Ehrlich DB, Roy A, Pietrzak RH, Harpaz-Rotem I, Levy I. POSTTRAUMATIC STRESS SYMPTOMS AND AVERSION TO AMBIGUOUS LOSSES IN COMBAT VETERANS. Depression And Anxiety 2016, 33: 606-613. PMID: 27000639, PMCID: PMC5247796, DOI: 10.1002/da.22494.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderCombat veteransAmbiguity attitudesCombat exposureDecision-making taskTrauma-related symptomsAnxious arousal symptomsBehavioral economics techniquesUncertainty attitudesAnxious arousalNeural underpinningsTraditional diagnostic categoriesArousal symptomsStress disorderBehavioral levelBehavioral outcomesParticipants' choicesLoss domainBehavioral economicsPsychiatric symptomsVeteransAttitudesPsychiatric disordersUncertain outcomesUncertain gains
2011
Cognitive-behavioral coping strategies associated with combat-related PTSD in treatment-seeking OEF–OIF Veterans
Pietrzak RH, Harpaz-Rotem I, Southwick SM. Cognitive-behavioral coping strategies associated with combat-related PTSD in treatment-seeking OEF–OIF Veterans. Psychiatry Research 2011, 189: 251-258. PMID: 21813184, DOI: 10.1016/j.psychres.2011.07.019.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderAvoidance coping strategiesPostdeployment social supportCombat-related PTSD symptomsCombat-related posttraumatic stress disorderOEF-OIF veteransPTSD symptomsCoping strategiesSocial supportAvoidance copingCognitive-behavioral coping strategiesCognitive therapy modelTrauma-related thoughtsMaladaptive coping strategiesMeasures of worryIraqi Freedom veteransBehavioral distractionCognitive copingStructural equation modelSocial avoidanceStress disorderThought controlCombat exposureGreater perceptionOperation Enduring Freedom