2018
2. MICROCIRCUITS, MACROCIRCUITS, AND CORTICOL DYSFUNCTION IN SCHIZOPHRENIA: A COMPUTATIONAL AND TRANSLATIONAL NEUROSCIENCE PERSPECTIVE
Krystal J. 2. MICROCIRCUITS, MACROCIRCUITS, AND CORTICOL DYSFUNCTION IN SCHIZOPHRENIA: A COMPUTATIONAL AND TRANSLATIONAL NEUROSCIENCE PERSPECTIVE. Schizophrenia Bulletin 2018, 44: s1-s1. PMCID: PMC5887654, DOI: 10.1093/schbul/sby014.001.Peer-Reviewed Original ResearchNMDA glutamate receptorsNMDA receptor antagonistCortical functional connectivityPathophysiology of schizophreniaReceptor antagonistTranslational neuroscience perspectiveGlutamate receptorsHealthy humansAnimal modelsSchizophrenia patientsMemory impairmentNeuropsychiatric disordersSynaptic signalingFunctional connectivityNovel therapeuticsSchizophreniaDisordersPresentationPatientsPathophysiologyDysfunctionKetamineAntagonistSymptomsAbnormalities
2015
Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe
Stone J, Kotoula V, Dietrich C, De Simoni S, Krystal JH, Mehta MA. Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe. Journal Of Psychopharmacology 2015, 29: 1025-1028. PMID: 26152321, DOI: 10.1177/0269881115592337.Peer-Reviewed Original ResearchConceptsPerceptual distortionBOLD responsePsychotomimetic States InventoryFunctional MRI acquisitionKetamine-induced effectsPerceptual alterationsDelusional thinkingBrain activityDelusional interpretationDelusional thoughtsCognitive symptomsBOLD increasesParietal cortexHealthy participantsParietal lobeStates InventorySubjective changesParacentral lobuleKetamine administrationSubcortical increasesKetamine effectsHealthy humansSignal changesMRI signal changesKetamine infusion
2013
Connectivity, Pharmacology, and Computation: Toward a Mechanistic Understanding of Neural System Dysfunction in Schizophrenia
Anticevic A, Cole MW, Repovs G, Savic A, Driesen NR, Yang G, Cho YT, Murray JD, Glahn DC, Wang XJ, Krystal JH. Connectivity, Pharmacology, and Computation: Toward a Mechanistic Understanding of Neural System Dysfunction in Schizophrenia. Frontiers In Psychiatry 2013, 4: 169. PMID: 24399974, PMCID: PMC3871997, DOI: 10.3389/fpsyt.2013.00169.Peer-Reviewed Original ResearchNMDA receptor antagonistFunctional neuroimaging toolsFunctional imaging studiesNeural system dysfunctionsRecent neuroimaging studiesKetamine administrationRecent findingsPharmacological treatmentSynaptic dysfunctionReceptor antagonistSystem dysfunctionPathophysiologic hypothesesBipolar illnessHealthy subjectsResting-state neuroimagingHealthy volunteersClinical investigationHealthy humansPsychiatric disordersCardinal featuresPharmacological manipulationPsychiatric conditionsLocal circuitsImaging studiesNeuropsychiatric diseases
2011
Glutamatergic Modulation of Auditory Information Processing in the Human Brain
Gunduz-Bruce H, Reinhart RM, Roach BJ, Gueorguieva R, Oliver S, D'Souza DC, Ford JM, Krystal JH, Mathalon DH. Glutamatergic Modulation of Auditory Information Processing in the Human Brain. Biological Psychiatry 2011, 71: 969-977. PMID: 22036036, PMCID: PMC3290754, DOI: 10.1016/j.biopsych.2011.09.031.Peer-Reviewed Original ResearchConceptsN-acetylcysteineAuditory mismatch negativityReceptor antagonistN-methyl-D-aspartate receptor antagonistAspartate glutamate receptor antagonistOral N-acetylcysteinePlacebo-controlled studyGlutamate receptor antagonistsEffects of ketamineInfusion of salineMismatch negativityTest dayMMN amplitudeCystine-glutamate exchangerAuditory information processingP300 event-related potentialGlutamatergic modulationCognitive enhancing agentsEvent-related potentialsKetamine effectsHealthy volunteersHealthy humansSchizophrenia patientsPositive symptomsKetamine
2008
Ethanol-like effects of thiopental and ketamine in healthy humans
Dickerson D, Pittman B, Ralevski E, Perrino A, Limoncelli D, Edgecombe J, Acampora G, Krystal J, Petrakis I. Ethanol-like effects of thiopental and ketamine in healthy humans. Journal Of Psychopharmacology 2008, 24: 203-211. PMID: 19028835, PMCID: PMC4484757, DOI: 10.1177/0269881108098612.Peer-Reviewed Original ResearchConceptsEthanol-like effectsEthanol-related effectsNMDA receptor antagonistBlock NMDA receptorsNMDA receptor antagonismSeparate test daysGamma-aminobutyric acidReceptor antagonismSubanesthetic dosesReceptor antagonistNMDA receptorsFamily historyEthanol intoxicationHealthy humansPharmacological agentsEthanol effectsKetamineReceptor activityReceptor functionLarger studyBehavioral effectsThiopentalIntoxicationSubjective intoxicationTest day
2007
Psychiatric safety of ketamine in psychopharmacology research
Perry EB, Cramer JA, Cho HS, Petrakis IL, Karper LP, Genovese A, O’Donnell E, Krystal JH, D’Souza D. Psychiatric safety of ketamine in psychopharmacology research. Psychopharmacology 2007, 192: 253-260. PMID: 17458544, DOI: 10.1007/s00213-007-0706-2.Peer-Reviewed Original ResearchConceptsSubanesthetic dosesHealthy human subjectsKetamine administrationClinical research programHuman subjectsTest sessionsPsychotic spectrum disordersPsychiatric safetyResidual sequelaePlacebo infusionIntravenous infusionKetamine effectsPsychopharmacology studiesResultsFour hundredAdverse reactionsObjectiveTo reportHealthy subjectsStudy participationClinical investigationHealthy humansSide effectsKetamineInfusionDosesAdministration
2000
IV glycine and oral d-cycloserine effects on plasma and CSF amino acids in healthy humans
D’Souza D, Gil R, Cassello K, Morrissey K, Abi-Saab D, White J, Sturwold R, Bennett A, Karper L, Zuzarte E, Charney D, Krystal J. IV glycine and oral d-cycloserine effects on plasma and CSF amino acids in healthy humans. Biological Psychiatry 2000, 47: 450-462. PMID: 10704956, DOI: 10.1016/s0006-3223(99)00133-x.Peer-Reviewed Original ResearchMeSH KeywordsAcoustic StimulationAdministration, OralAdultAmino AcidsAntimetabolitesBiological AvailabilityCycloserineDose-Response Relationship, DrugDouble-Blind MethodFemaleGlycineHumansInjections, IntravenousMaleMiddle AgedNeuropsychological TestsPsychiatric Status Rating ScalesReceptors, GlycineReceptors, N-Methyl-D-AspartateReflex, StartleSerineConceptsAcoustic startle responseN-methyl-D-aspartate (NMDA) glutamate receptorsD-cycloserineStartle responseCentral nervous system effectsTest dayCSF glycine levelsOral D-cycloserineCSF amino acidsNervous system effectsDouble-blind conditionsCognitive test performanceD-cycloserine effectsHealthy human subjectsCentral bioavailabilityIntravenous glycineLumbar punctureSecond test dayGlycine administrationModulates neurotransmissionGlycine levelsGlutamate receptorsCoagonist siteCerebrospinal fluidHealthy humansKetamine and amphetamine interactions in healthy humans: Further insights into glutamate-dopamine interactions
Krystal J, D'Souza D, Belger A, Madonick S, Cossello K. Ketamine and amphetamine interactions in healthy humans: Further insights into glutamate-dopamine interactions. Schizophrenia Research 2000, 41: 235-236. DOI: 10.1016/s0920-9964(00)90891-0.Peer-Reviewed Original ResearchGlutamate-dopamine interactionsHealthy humansAttenuation of ketamine effects in healthy humans by lamotrigine, a drug that reduces glutamate release
Anand A, Berman R, Charney D, Krystal J. Attenuation of ketamine effects in healthy humans by lamotrigine, a drug that reduces glutamate release. Schizophrenia Research 2000, 41: 33. DOI: 10.1016/s0920-9964(00)90372-4.Peer-Reviewed Original Research
1998
Interactive effects of subanesthetic ketamine and subhypnotic lorazepam in humans
Krystal J, Karper L, Bennett A, D’Souza D, Abi-Dargham A, Morrissey K, Abi-Saab D, Bremner J, Bowers Jr. M, Suckow R, Stetson P, Heninger G, Charney D. Interactive effects of subanesthetic ketamine and subhypnotic lorazepam in humans. Psychopharmacology 1998, 135: 213-229. PMID: 9498724, DOI: 10.1007/s002130050503.Peer-Reviewed Original ResearchConceptsWisconsin Card Sorting TestClinician-Administered Dissociative States ScalePerceptual alterationsAmnestic effectsInteractive effectsCard Sorting TestBrief Psychiatric Rating ScaleAttention impairmentSorting TestPerceptual effectsProverb interpretationEmotional distressDissociative effectsCortical impairmentNegative symptomsState scaleBehavioral effectsTest dayPsychiatric Rating ScaleLorazepam 2ImpairmentRating ScaleSubanesthetic ketamineHealthy humansPlacebo 2
1995
Intravenous glycine and oral d-Cycloserine effects on CSF Amino acids, plasma hormones and behavior in healthy humans: Implications for schizophrenia
D'Souza D, Morrissey K, Abi-Saab D, Damon D, Gil R, Bennett A, Krystal J. Intravenous glycine and oral d-Cycloserine effects on CSF Amino acids, plasma hormones and behavior in healthy humans: Implications for schizophrenia. Schizophrenia Research 1995, 15: 147. DOI: 10.1016/0920-9964(95)95456-j.Peer-Reviewed Original Research