2014
Error-related functional connectivity of the thalamus in cocaine dependence
Zhang S, Hu S, Bednarski SR, Erdman E, Li CS. Error-related functional connectivity of the thalamus in cocaine dependence. NeuroImage Clinical 2014, 4: 585-592. PMID: 24936409, PMCID: PMC4053644, DOI: 10.1016/j.nicl.2014.01.015.Peer-Reviewed Original ResearchConceptsVentral medial prefrontal cortexFunctional connectivityCognitive controlGeneralized psychophysiological interaction analysisTask-related processesPsychophysiological interaction analysisSubgenual anterior cingulate cortexCocaine dependenceMedial prefrontal cortexAnterior cingulate cortexError processingExecutive functionCocaine-dependent patientsPrefrontal cortexCingulate cortexRelated activationSubstance misuseCocaine useDrug useThalamic connectivity
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
2006
Performance monitoring and stop signal inhibition in abstinent patients with cocaine dependence
Li CS, Milivojevic V, Kemp K, Hong K, Sinha R. Performance monitoring and stop signal inhibition in abstinent patients with cocaine dependence. Drug And Alcohol Dependence 2006, 85: 205-212. PMID: 16725282, DOI: 10.1016/j.drugalcdep.2006.04.008.Peer-Reviewed Original ResearchConceptsImpaired response inhibitionStop-signal taskResponse inhibitionCognitive processesCocaine-dependent patientsSignal taskResponse readinessTask-related cognitive processesCritical cognitive mechanismsPerformance monitoringMeasures of impulsivityEducation-matched healthy controlsSignal reaction timeAbstinent cocaine-dependent patientsHorse-race modelCognitive mechanismsPSS effectCocaine subjectsRace modelHealthy controlsSubstance abusersAbstinent patientsSSRTStop signalCocaine dependenceAlexithymia and stress-induced brain activation in cocaine-dependent men and women.
Li CS, Sinha R. Alexithymia and stress-induced brain activation in cocaine-dependent men and women. Journal Of Psychiatry And Neuroscience 2006, 31: 115-21. PMID: 16575427, PMCID: PMC1413961.Peer-Reviewed Original ResearchConceptsToronto Alexithymia ScaleFrontal cortexTAS scoresScript-guided imageryAbstinent cocaine-dependent subjectsBilateral temporal cortexFunctional magnetic resonanceStress-induced brain activationProcessing of stressMiddle frontal cortexCocaine-dependent individualsRight frontal cortexCocaine-dependent menCocaine-dependent patientsNeutral imageryNeural processingBrain activationMale cocaine usersStressful situationsCocaine-dependent subjectsRight amygdalaAlexithymic featuresAlexithymia ScaleTemporal cortexSubcortical activationAntisocial personality and stress-induced brain activation in cocaine-dependent patients
Li CS, Kosten TR, Sinha R. Antisocial personality and stress-induced brain activation in cocaine-dependent patients. Neuroreport 2006, 17: 243-247. PMID: 16462591, DOI: 10.1097/01.wnr.0000199471.06487.a2.Peer-Reviewed Original ResearchConceptsCocaine-dependent individualsDistress processingBrain activationStress imageryAntisocial personalitySocialization scoresFunctional magnetic resonance imaging studyAbstinent cocaine-dependent individualsRegional brain activationStress-induced brain activationFemale participantsMedial prefrontal cortexMagnetic resonance imaging studyResonance imaging studyNeural correlatesLower socialization scoresCocaine-dependent patientsCorticolimbic brain regionsPrefrontal cortexImportant sex differencesBrain regionsPersonalityInterest analysisSignificant activationEffect size