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
2017
Fear extinction and memory reconsolidation as critical components in behavioral treatment for posttraumatic stress disorder and potential augmentation of these processes
Smith NB, Doran JM, Sippel LM, Harpaz-Rotem I. Fear extinction and memory reconsolidation as critical components in behavioral treatment for posttraumatic stress disorder and potential augmentation of these processes. Neuroscience Letters 2017, 649: 170-175. PMID: 28065842, DOI: 10.1016/j.neulet.2017.01.006.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainConditioning, ClassicalExtinction, PsychologicalFearHumansMemory ConsolidationPsychotherapyStress Disorders, Post-TraumaticConceptsPosttraumatic stress disorderReconsolidation processPTSD psychotherapyStress disorderBehavioral treatmentExposure-based treatmentsCritical brain regionsFear extinctionMemory reconsolidationTraumatic memoriesImportant future directionsPTSD populationsPTSD therapyNeurobiological mechanismsPrefrontal cortexReconsolidationBrain regionsPsychotherapyProcess of extinctionMemoryPotential avenuesFuture directionsBehavioral modificationExtinctionDisorders