2018
Levodopa improves response inhibition and enhances striatal activation in early-stage Parkinson's disease
Manza P, Schwartz G, Masson M, Kann S, Volkow ND, Li CR, Leung HC. Levodopa improves response inhibition and enhances striatal activation in early-stage Parkinson's disease. Neurobiology Of Aging 2018, 66: 12-22. PMID: 29501966, PMCID: PMC6436810, DOI: 10.1016/j.neurobiolaging.2018.02.003.Peer-Reviewed Original ResearchConceptsEarly-stage Parkinson's diseaseParkinson's diseaseDopaminergic medicationAdvanced Parkinson's diseaseStriatal activationResponse inhibitionRole of dopaminergicAge-matched controlsFunctional magnetic resonance imagingMagnetic resonance imagingExecutive functionLevodopa monotherapyMultiple medicationsMotor symptomsSignificant group differencesPD groupStop-signal taskAdvanced stageLevodopaResonance imagingMedicationsFunctional connectivityCritical executive functionMotor inhibitionPatients
2016
A dual but asymmetric role of the dorsal anterior cingulate cortex in response inhibition and switching from a non-salient to salient action
Manza P, Hu S, Chao HH, Zhang S, Leung HC, Li CS. A dual but asymmetric role of the dorsal anterior cingulate cortex in response inhibition and switching from a non-salient to salient action. NeuroImage 2016, 134: 466-474. PMID: 27126003, PMCID: PMC4912860, DOI: 10.1016/j.neuroimage.2016.04.055.Peer-Reviewed Original ResearchConceptsDorsal anterior cingulate cortexStop-signal reaction timeAnterior cingulate cortexSignal reaction timeCingulate cortexResponse inhibitionMotor inhibitionPre-supplementary motor areaRegional activationPre-SMA functionRegional brain activationMotor response inhibitionMotor areaStop trialsSalience processingBrain activationSalience detectionSuccess trialsSignal taskTrialsInhibitionSuccessful inhibitionInfrequent stimuliCortexActivation
2012
Inference With Interference Between Units in an fMRI Experiment of Motor Inhibition
Luo X, Small DS, Li CR, Rosenbaum PR. Inference With Interference Between Units in an fMRI Experiment of Motor Inhibition. Journal Of The American Statistical Association 2012, 107: 530-541. PMID: 26504255, PMCID: PMC4618394, DOI: 10.1080/01621459.2012.655954.Peer-Reviewed Original Research
2011
Neural processes of preparatory control for stop signal inhibition
Hu S, Li C. Neural processes of preparatory control for stop signal inhibition. Human Brain Mapping 2011, 33: 2785-2796. PMID: 21976392, PMCID: PMC3293936, DOI: 10.1002/hbm.21399.Peer-Reviewed Original ResearchConceptsStop-signal reaction timeFunctional magnetic resonance imagingMotor inhibitionShorter stop-signal reaction timesPrefrontal cortexRight orbital frontal cortexMotor executionPrimary motor cortexOrbital frontal cortexSignal inhibitionMagnetic resonance imagingPosterior cingulate cortexInferior parietal lobuleRight prefrontal cortexMotor cortexSignal reaction timeBilateral putamenFrontal cortexHealthy adultsVentromedial prefrontal cortexCingulate cortexResonance imagingPreparatory inhibitionParietal lobuleStop-signal trials