2019
Neural computations of threat in the aftermath of combat trauma
Homan P, Levy I, Feltham E, Gordon C, Hu J, Li J, Pietrzak RH, Southwick S, Krystal JH, Harpaz-Rotem I, Schiller D. Neural computations of threat in the aftermath of combat trauma. Nature Neuroscience 2019, 22: 470-476. PMID: 30664770, PMCID: PMC6829910, DOI: 10.1038/s41593-018-0315-x.Peer-Reviewed Original ResearchConceptsPTSD symptomsPost-traumatic stress disorder symptomsHigher PTSD symptom severityThreat-predictive cuesPTSD symptom severityAssociative threatPredictive cuesNeural trackingDisorder symptomsPrediction errorCombat veteransDynamic learning rateNegative outcomesCombat traumaSmaller amygdala volumesNeural computationLatent markersSymptomatic veteransSymptom severityAmygdala volumeAssociabilityCuesLearning rateVeteransSymptoms
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