2013
Methylphenidate remediates error-preceding activation of the default mode brain regions in cocaine-addicted individuals
Matuskey D, Luo X, Zhang S, Morgan PT, Abdelghany O, Malison RT, Li CS. Methylphenidate remediates error-preceding activation of the default mode brain regions in cocaine-addicted individuals. Psychiatry Research 2013, 214: 116-121. PMID: 23973363, PMCID: PMC3811038, DOI: 10.1016/j.pscychresns.2013.06.009.Peer-Reviewed Original ResearchMeSH KeywordsAdultCentral Nervous System StimulantsCerebral CortexCocaine-Related DisordersCognition DisordersFemaleHumansImage Processing, Computer-AssistedInhibition, PsychologicalMagnetic Resonance ImagingMaleMethylphenidateMiddle AgedModels, NeurologicalNeural PathwaysNeuropsychological TestsOxygenPhotic StimulationReaction TimeConceptsFunctional magnetic resonance imagingStop-signal taskCD individualsCerebral activationPrecuneus/posterior cingulate cortexSystolic blood pressureInfluence of methylphenidateEffects of methylphenidateMagnetic resonance imagingPosterior cingulate cortexBrain imaging studiesCocaine-addicted individualsDefault mode networkAgonist therapyBlood pressureIntravenous methylphenidateCortico-striatoHealthy controlsCocaine-dependent individualsThalamic activationCingulate cortexResonance imagingBrain regionsMethylphenidateCocaine dependence
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
2010
Biological markers of the effects of intravenous methylphenidate on improving inhibitory control in cocaine-dependent patients
Li CS, Morgan PT, Matuskey D, Abdelghany O, Luo X, Chang JL, Rounsaville BJ, Ding YS, Malison RT. Biological markers of the effects of intravenous methylphenidate on improving inhibitory control in cocaine-dependent patients. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 14455-14459. PMID: 20660731, PMCID: PMC2922598, DOI: 10.1073/pnas.1002467107.Peer-Reviewed Original ResearchConceptsMiddle frontal cortexStop-signal reaction timeCocaine-dependent patientsWhole-brain linear regressionLonger stop-signal reaction timesFunctional MRI studyInhibitory controlInhibition-related activationBlood pressureIntravenous methylphenidatePeripheral biomarkersSignal reaction timeFrontal cortexStop-signal taskIndividualized treatmentHealthy individualsMRI studiesVentromedial prefrontal cortexSpecific neural mechanismsCocaine dependenceBiological markersPrefrontal cortexPatientsMethylphenidate responseSignal task
2008
CLINICAL STUDY: Subjective responses and cardiovascular effects of self‐administered cocaine in cocaine‐abusing men and women
Lynch WJ, Kalayasiri R, Sughondhabirom A, Pittman B, Coric V, Morgan PT, Malison RT. CLINICAL STUDY: Subjective responses and cardiovascular effects of self‐administered cocaine in cocaine‐abusing men and women. Addiction Biology 2008, 13: 403-410. PMID: 18782384, PMCID: PMC3690939, DOI: 10.1111/j.1369-1600.2008.00115.x.Peer-Reviewed Original ResearchConceptsSelf-administer cocaineSelf-administered cocaine infusionsDiastolic blood pressureSubjective effect measuresCocaine-induced increasesCocaine self-administration sessionsFeelings of hungerFixed ratio 1Cocaine-abusing menSelf-administration sessionsTime-dependent increaseCardiovascular effectsBlood pressureCardiovascular responsesHormonal influencesCocaine abuseSecondary analysisCocaine infusionsHuman laboratoryCardiovascular measuresEffect measuresWomenCocaineMenSignificant main effect