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
2009
Activation of the pre-supplementary motor area but not inferior prefrontal cortex in association with short stop signal reaction time – an intra-subject analysis
Chao H, Luo X, Chang J, Li CS. Activation of the pre-supplementary motor area but not inferior prefrontal cortex in association with short stop signal reaction time – an intra-subject analysis. BMC Neuroscience 2009, 10: 75. PMID: 19602259, PMCID: PMC2719646, DOI: 10.1186/1471-2202-10-75.Peer-Reviewed Original ResearchConceptsStop-signal reaction timeRight inferior prefrontal cortexStop-signal taskPre-supplementary motor areaShorter stop-signal reaction timesInferior prefrontal cortexSignal reaction timePrefrontal cortexResponse inhibitionMotor areaMiddle/posterior cingulate cortexMotor response inhibitionInferior frontal cortexRegional brain activationStop-signal inhibitionLonger stop-signal reaction timesInhibitory motor controlPosterior cingulate cortexMedial prefrontal cortexReaction timeGreater activityAttentional monitoringNeural processesSignal taskBrain activation
2008
Subcortical processes of motor response inhibition during a stop signal task
Li CS, Yan P, Sinha R, Lee TW. Subcortical processes of motor response inhibition during a stop signal task. NeuroImage 2008, 41: 1352-1363. PMID: 18485743, PMCID: PMC2474693, DOI: 10.1016/j.neuroimage.2008.04.023.Peer-Reviewed Original ResearchConceptsMotor response inhibitionSubthalamic nucleusStop-signal reaction timeStop-signal taskResponse inhibitionShorter stop-signal reaction timesSignal inhibitionMagnetic resonance imaging studyGreater activationLonger stop-signal reaction timesSignal taskResonance imaging studyFunctional magnetic resonance imaging studySubcortical processesStop-signal inhibitionGroups of subjectsSubthalamic activityBasal gangliaSignal reaction timeThalamic nucleiCaudate headImaging studiesStop trialsMedial prefrontal activityCortical mechanisms
2006
Imaging Response Inhibition in a Stop-Signal Task: Neural Correlates Independent of Signal Monitoring and Post-Response Processing
Li CS, Huang C, Constable RT, Sinha R. Imaging Response Inhibition in a Stop-Signal Task: Neural Correlates Independent of Signal Monitoring and Post-Response Processing. Journal Of Neuroscience 2006, 26: 186-192. PMID: 16399686, PMCID: PMC6674298, DOI: 10.1523/jneurosci.3741-05.2006.Peer-Reviewed Original ResearchConceptsStop-signal reaction timeStop-signal taskResponse inhibitionPre-potent response tendenciesReaction timeShorter stop-signal reaction timesEfficient response inhibitionFunctional magnetic resonanceLonger stop-signal reaction timesGroups of subjectsHigher cortical functionsError monitoringNeural correlatesTask demandsHabitual responsesBrain activationNeural substrataResponse tendenciesGreater activationInhibitory controlAffective functionsMotor areaBrain regionsFrontal cortexCortical function