2013
Relationship of resting brain hyperconnectivity and schizophrenia-like symptoms produced by the NMDA receptor antagonist ketamine in humans
Driesen NR, McCarthy G, Bhagwagar Z, Bloch M, Calhoun V, D'Souza DC, Gueorguieva R, He G, Ramachandran R, Suckow RF, Anticevic A, Morgan PT, Krystal JH. Relationship of resting brain hyperconnectivity and schizophrenia-like symptoms produced by the NMDA receptor antagonist ketamine in humans. Molecular Psychiatry 2013, 18: 1199-1204. PMID: 23337947, PMCID: PMC3646075, DOI: 10.1038/mp.2012.194.Peer-Reviewed Original ResearchMeSH KeywordsAdultBrain MappingCerebral CortexDiagnostic and Statistical Manual of Mental DisordersExcitatory Amino Acid AntagonistsFemaleHealthy VolunteersHumansKetamineMaleMiddle AgedSchizophreniaConceptsFunctional connectivityNegative symptomsGamma-aminobutyric acid (GABA) neuronsNMDA receptor antagonist ketamineAspartate glutamate receptor antagonistContinuous ketamine infusionGlutamate receptor antagonistsNMDA-R antagonistsCortical functional connectivityNMDA-R antagonist ketamineSchizophrenia-like symptomsHealthy human subjectsNegative Syndrome ScaleBrain functional connectivityPrimary samplesRegion-specific mannerFunctional magnetic resonanceKetamine infusionReceptor antagonistPathological increaseSyndrome ScaleSymptomsPreclinical researchKetamineBrain oscillations
2012
Guanfacine effects on stress, drug craving and prefrontal activation in cocaine dependent individuals: preliminary findings
Fox HC, Seo D, Tuit K, Hansen J, Kimmerling A, Morgan PT, Sinha R. Guanfacine effects on stress, drug craving and prefrontal activation in cocaine dependent individuals: preliminary findings. Journal Of Psychopharmacology 2012, 26: 958-972. PMID: 22234929, PMCID: PMC3694403, DOI: 10.1177/0269881111430746.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic alpha-2 Receptor AgonistsAdultCocaine-Related DisordersCombined Modality TherapyConnecticutDiagnostic and Statistical Manual of Mental DisordersDose-Response Relationship, DrugDouble-Blind MethodFemaleGuanfacineHumansImagery, PsychotherapyMagnetic Resonance ImagingMaleMiddle AgedNeuronsPilot ProjectsPrefrontal CortexStress, PsychologicalSubstance Withdrawal SyndromeConceptsCocaine-dependent individualsPrefrontal activityDrug cravingFunctional magnetic resonance imaging sessionDrug cue-induced cravingTreatment-seeking cocaine dependent individualsCue-induced drug cravingDependent individualsMagnetic resonance imaging sessionLateral prefrontal activityCue-induced cravingDrug cue exposureGuanfacine's effectsDrug cuesSubjective cravingImagery conditionPrefrontal activationCue exposurePhysiological arousalCognitive challengesBrain responsesAgonist guanfacineNicotine cravingGuanfacine groupCraving
2011
Prazosin Effects on Stress‐ and Cue‐Induced Craving and Stress Response in Alcohol‐Dependent Individuals: Preliminary Findings
Fox HC, Anderson GM, Tuit K, Hansen J, Kimmerling A, Siedlarz KM, Morgan PT, Sinha R. Prazosin Effects on Stress‐ and Cue‐Induced Craving and Stress Response in Alcohol‐Dependent Individuals: Preliminary Findings. Alcohol Clinical And Experimental Research 2011, 36: 351-360. PMID: 21919922, PMCID: PMC3243763, DOI: 10.1111/j.1530-0277.2011.01628.x.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic alpha-1 Receptor AntagonistsAdultAlcoholismAnxietyBlood PressureCuesDiagnostic and Statistical Manual of Mental DisordersDouble-Blind MethodEmotionsFemaleHemodynamicsHumansHypothalamo-Hypophyseal SystemImaginationMalePituitary-Adrenal SystemPrazosinSecondary PreventionStress, PsychologicalConceptsCue-induced alcohol cravingNegative emotionsAlcohol-dependent individualsBlunted HPA responseAlcohol cravingAlcohol cuesStress dysregulationTreatment-seeking alcohol-dependent individualsCue-induced alcoholAlcohol cue exposureCue-Induced CravingImagery exposureBlood pressureHPA responseLower alcohol cravingCue exposureRelapse susceptibilityPreliminary efficacy studyEmotionsPrazosin groupPlacebo groupCravingCounterbalanced orderControl conditionAnxiety