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 ResearchConceptsKetamine 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 fasciculusAmygdala downregulation training using fMRI neurofeedback in post-traumatic stress disorder: a randomized, double-blind trial
Zhao Z, Duek O, Seidemann R, Gordon C, Walsh C, Romaker E, Koller W, Horvath M, Awasthi J, Wang Y, O’Brien E, Fichtenholtz H, Hampson M, Harpaz-Rotem I. Amygdala downregulation training using fMRI neurofeedback in post-traumatic stress disorder: a randomized, double-blind trial. Translational Psychiatry 2023, 13: 177. PMID: 37230984, PMCID: PMC10209552, DOI: 10.1038/s41398-023-02467-6.Peer-Reviewed Original ResearchConceptsPost-traumatic stress disorderControl groupAmygdala activityPTSD treatmentDouble-blind clinical trialStress disorderDouble-blind trialSecondary outcome measurementsTrauma recallNeurofeedback trainingGreater improvementAmygdala controlsPotential clinical applicationsSymptom scoresActive groupClinical trialsTreatment successOutcome measurementsTrauma scriptsSymptom reductionNeurofeedback interventionPTSD symptomsFMRI neurofeedbackAmygdalaNeural markers