2021
Human iEEG Characterization of Threat and Anxiety Oscillations Across Amygdala, Hippocampus, and Frontal Cortex
McClurkin M, Krystal J, Kaye A, Damisah E. Human iEEG Characterization of Threat and Anxiety Oscillations Across Amygdala, Hippocampus, and Frontal Cortex. Biological Psychiatry 2021, 89: s255. DOI: 10.1016/j.biopsych.2021.02.638.Peer-Reviewed Original Research
2017
Smaller Hippocampal Volume in Posttraumatic Stress Disorder: A Multisite ENIGMA-PGC Study: Subcortical Volumetry Results From Posttraumatic Stress Disorder Consortia
Logue MW, van Rooij SJH, Dennis EL, Davis SL, Hayes JP, Stevens JS, Densmore M, Haswell CC, Ipser J, Koch SBJ, Korgaonkar M, Lebois LAM, Peverill M, Baker JT, Boedhoe PSW, Frijling JL, Gruber SA, Harpaz-Rotem I, Jahanshad N, Koopowitz S, Levy I, Nawijn L, O’Connor L, Olff M, Salat DH, Sheridan MA, Spielberg JM, van Zuiden M, Winternitz SR, Wolff JD, Wolf EJ, Wang X, Wrocklage K, Abdallah CG, Bryant RA, Geuze E, Jovanovic T, Kaufman ML, King AP, Krystal JH, Lagopoulos J, Bennett M, Lanius R, Liberzon I, McGlinchey RE, McLaughlin KA, Milberg WP, Miller MW, Ressler KJ, Veltman DJ, Stein DJ, Thomaes K, Thompson PM, Morey RA. Smaller Hippocampal Volume in Posttraumatic Stress Disorder: A Multisite ENIGMA-PGC Study: Subcortical Volumetry Results From Posttraumatic Stress Disorder Consortia. Biological Psychiatry 2017, 83: 244-253. PMID: 29217296, PMCID: PMC5951719, DOI: 10.1016/j.biopsych.2017.09.006.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderStress disorderTrauma-exposed control subjectsCurrent posttraumatic stress disorderSmaller hippocampal volumesControl subjectsSmaller hippocampiHippocampal volumeClinical dataAmygdala volumeAmygdala findingsSmaller amygdalaConsortium studySubcortical structuresNeuroimaging studiesLargest neuroimaging studyENIGMA consortiumBrain responsesNeurobiological underpinningsPsychiatric Genomics ConsortiumDisordersSubjectsWorking GroupSignificance levelHippocampusThe Association of PTSD Symptom Severity With Localized Hippocampus and Amygdala Abnormalities
Akiki TJ, Averill CL, Wrocklage KM, Schweinsburg B, Scott JC, Martini B, Averill LA, Southwick SM, Krystal JH, Abdallah CG. The Association of PTSD Symptom Severity With Localized Hippocampus and Amygdala Abnormalities. Chronic Stress 2017, 1: 2470547017724069. PMID: 28825050, PMCID: PMC5562232, DOI: 10.1177/2470547017724069.Peer-Reviewed Original ResearchPosttraumatic stress disorderUS veteransAmygdala abnormalitiesVertex-wise shape analysisPTSD symptomsClinician-Administered PTSD ScaleCross-sectional studyHigh-resolution magnetic resonanceStructural neuroimaging studiesSevere PTSD symptomsHippocampal abnormalitiesPTSD symptom severitySubtle morphometric changesRe-experiencing symptomsRight hippocampusCentromedial amygdalaPTSD symptom clustersRight amygdalaPTSD ScaleAnterior hippocampusHippocampusStructural abnormalitiesDSM-IVSymptom clustersSymptom severity
2003
Preliminary evidence of hippocampal dysfunction in adolescent MDMA (“ecstasy”) users: possible relationship to neurotoxic effects
Jacobsen LK, Mencl WE, Pugh KR, Skudlarski P, Krystal JH. Preliminary evidence of hippocampal dysfunction in adolescent MDMA (“ecstasy”) users: possible relationship to neurotoxic effects. Psychopharmacology 2003, 173: 383-390. PMID: 14647960, DOI: 10.1007/s00213-003-1679-4.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingMDMA usersCognitive deficitsMDMA useBrain functionDivided attentionMemory taskMemory loadResultsMDMA usersLeft hippocampusHippocampal dysfunctionSubstance useCognitive impairmentAdolescencePreliminary evidenceReaction timeDevelopmental impactPilot sampleDeficitsMDMAMagnetic resonance imagingIQAttentionMemoryHippocampus
2000
458. Extracellular levels of GABA and glutamate increase in response to direct electrical stimulation of the hippocampus in humans: an in vivo microdialysis study
Abi-Saab W, Spencer D, Srihari V, Thompson J, Roth R, Sherwin R, Krystal J. 458. Extracellular levels of GABA and glutamate increase in response to direct electrical stimulation of the hippocampus in humans: an in vivo microdialysis study. Biological Psychiatry 2000, 47: s140. DOI: 10.1016/s0006-3223(00)00728-9.Peer-Reviewed Original Research