2023
Long term structural and functional neural changes following a single infusion of Ketamine in PTSD
Duek O, Korem N, Li Y, Kelmendi B, Amen S, Gordon C, Milne M, Krystal J, Levy I, Harpaz-Rotem I. Long term structural and functional neural changes following a single infusion of Ketamine in PTSD. Neuropsychopharmacology 2023, 48: 1648-1658. PMID: 37270621, PMCID: PMC10517133, DOI: 10.1038/s41386-023-01606-3.Peer-Reviewed Original ResearchMeSH KeywordsExtinction, PsychologicalHumansKetamineMidazolamPilot ProjectsPsychotherapyStress Disorders, Post-TraumaticConceptsKetamine recipientsSingle infusionMain study outcomeTiming of administrationEnd of treatmentNMDA receptor antagonistFunctional neural changesFrequency of administrationSignificant clinical implicationsTrauma-focused psychotherapyBrief exposure therapyAmygdala-vmPFC connectivityPost-retrieval extinctionKetamine doseKetamine administrationReceptor antagonistTrauma scriptsNeural changesClinical implicationsDecreased connectivityExposure therapyKetamineTrauma memoriesStudy outcomesUncinate fasciculus
2008
A Meta-Analysis of D-Cycloserine and the Facilitation of Fear Extinction and Exposure Therapy
Norberg MM, Krystal JH, Tolin DF. A Meta-Analysis of D-Cycloserine and the Facilitation of Fear Extinction and Exposure Therapy. Biological Psychiatry 2008, 63: 1118-1126. PMID: 18313643, DOI: 10.1016/j.biopsych.2008.01.012.Peer-Reviewed Original ResearchConceptsExposure therapyFear extinctionD-cycloserineNMDA receptor functionPartial N-methyl-d-aspartate (NMDA) receptor agonistEffects of DCSExposure-based therapyExposure-based treatmentsFear memory consolidationReceptor functionN-methyl-D-aspartate receptor agonistMemory consolidationDCS doseTranslational researchExposure procedureTherapy literatureEnglish-language journal articlesReceptor agonistQuantitative reviewTrial designMeta-AnalysisTherapyStudy authorsTypes of subjectsEffective agent
1995
Functional neuroanatomical correlates of the effects of stress on memory
Bremner J, Krystal J, Southwick S, Charney D. Functional neuroanatomical correlates of the effects of stress on memory. Journal Of Traumatic Stress 1995, 8: 527-553. PMID: 8564272, DOI: 10.1002/jts.2490080403.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderEffects of stressBrain regionsTraumatic stressNeural mechanismsSymptoms of PTSDFalse memory syndromeFunctional neuroanatomical correlatesFear conditioningNeurobiological approachStress disorderDissociative amnesiaMemory syndromeStress sensitizationNeuroanatomical correlatesMemory functionChildhood memoriesMemoryStress-induced alterationsImplicationsAmnesiaPsychotherapyCorrelatesConditioningSymptoms
1993
Psychobiologic Mechanisms of Posttraumatic Stress Disorder
Charney DS, Deutch AY, Krystal JH, Southwick SM, Davis M. Psychobiologic Mechanisms of Posttraumatic Stress Disorder. JAMA Psychiatry 1993, 50: 294-305. PMID: 8466391, DOI: 10.1001/archpsyc.1993.01820160064008.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderStress disorderPathophysiology of PTSDAvoidance of stimuliFailure of extinctionFear conditioningTraumatic memoriesMemory processesAutonomic hyperarousalTraumatic eventsEffects of stressCore symptomsPersistent reexperiencingPsychobiologic mechanismsAdaptive behavioralBrain structuresNeurochemical systemsNeurobiologic mechanismsReexperiencingParallel activationHyperarousalDisordersChronic courseTrauma resultsBehavioral sensitization