2020
The Neural Processes Interlinking Social Isolation, Social Support, and Problem Alcohol Use
Le TM, Wang W, Zhornitsky S, Dhingra I, Chen Y, Zhang S, Li CR. The Neural Processes Interlinking Social Isolation, Social Support, and Problem Alcohol Use. The International Journal Of Neuropsychopharmacology 2020, 24: 333-343. PMID: 33211853, PMCID: PMC8059487, DOI: 10.1093/ijnp/pyaa086.Peer-Reviewed Original ResearchConceptsSocial supportVentral striatumVS connectivityAlcohol misuseSocial isolationWhole-brain multiple regressionProblem drinkingProblem drinkersAlcohol useResting-state functional magnetic resonanceFunctional magnetic resonanceMiddle frontal gyrusPotential protective factorsProblem alcohol usePrefrontal cortical modulationCognitive controlIndividual differencesNeural processesNeural substratesFrontal gyrusPrefrontal connectivityElevated stress responseFunctional connectivityPath analysisNeural connectivityAge-Related Changes in the Neural Processes of Reward-Directed Action and Inhibition of Action
Le TM, Chao H, Levy I, Li CR. Age-Related Changes in the Neural Processes of Reward-Directed Action and Inhibition of Action. Frontiers In Psychology 2020, 11: 1121. PMID: 32587547, PMCID: PMC7298110, DOI: 10.3389/fpsyg.2020.01121.Peer-Reviewed Original ResearchInhibition of actionFunctional brain changesRostral anterior cingulate cortexWhole-brain multiple regressionAnterior cingulate cortexMiddle frontal gyrusAge-related changesFunctional magnetic resonanceBrain changesPostcentral gyrusCingulate cortexAnterior insulaFrontal gyrusTrialsProlonged response timeSuccess trialsGo trialsNeural activationReward-directed actionNegative modulationAgeAction inhibitionBrain substratesAge-related slowingReduced activity
2017
Alterations in visual cortical activation and connectivity with prefrontal cortex during working memory updating in major depressive disorder
Le TM, Borghi JA, Kujawa AJ, Klein DN, Leung HC. Alterations in visual cortical activation and connectivity with prefrontal cortex during working memory updating in major depressive disorder. NeuroImage Clinical 2017, 14: 43-53. PMID: 28138426, PMCID: PMC5257188, DOI: 10.1016/j.nicl.2017.01.004.Peer-Reviewed Original ResearchConceptsVisual association areasMemory updatingPrefrontal cortexAssociation areasIrrelevant negative informationMajor depressive disorderPrefrontal cortical activityFunctional magnetic resonanceVisual cortical activationMDD groupCognitive controlNeutral facesEmotion processingTask stimuliGreater ruminationRecognition testCore clinical featuresPerformance deficitsRecognition taskNegative informationMore persistent activationAbnormal affectTask informationUnmedicated participantsCortical activation