2009
Altered Impulse Control in Alcohol Dependence: Neural Measures of Stop Signal Performance
Li C, Luo X, Yan P, Bergquist K, Sinha R. Altered Impulse Control in Alcohol Dependence: Neural Measures of Stop Signal Performance. Alcohol Clinical And Experimental Research 2009, 33: 740-750. PMID: 19170662, PMCID: PMC2697053, DOI: 10.1111/j.1530-0277.2008.00891.x.Peer-Reviewed Original ResearchConceptsHealthy control subjectsFunctional magnetic resonance imagingAlcohol dependencePost-error behavioral adjustmentDorsolateral prefrontal cortexAlcohol urgesTrial reaction timePost-error slowingPrefrontal cortexLeft dorsolateral prefrontal cortexRight dorsolateral prefrontal cortexMagnetic resonance imagingImpulse controlStatistical parametric mappingStop errorAbstinent patientsControl subjectsNovel pharmacotherapiesSignal reaction timeTreatment outcomesFrontal cortexHC subjectsResonance imagingBehavioral adjustmentSubcortical structures
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 dependence