Resting state hypothalamic and dorsomedial prefrontal cortical connectivity of the periaqueductal gray in cocaine addiction
Zhang S, Zhornitsky S, Wang W, Le TM, Dhingra I, Chen Y, Li C. Resting state hypothalamic and dorsomedial prefrontal cortical connectivity of the periaqueductal gray in cocaine addiction. Addiction Biology 2020, 26: e12989. PMID: 33300238, PMCID: PMC8614224, DOI: 10.1111/adb.12989.Peer-Reviewed Original ResearchConceptsPeriaqueductal grayPain circuitsDrug useCocaine addictionFunctional connectivityPrefrontal cortical connectivityState functional connectivityReward circuit dysfunctionRecent cocaine useHealthy control participantsInferior parietal cortexCompulsive drug useHabitual drug useCircuit dysfunctionCocaine withdrawalCocaine-dependent individualsCocaine cravingCortical connectivitySignificant anxietyDorsomedial prefrontalParietal cortexCocaine useIntrinsic connectivitySubcortical hubsDrug seekingCue-elicited functional connectivity of the periaqueductal gray and tonic cocaine craving
Zhang S, Zhornitsky S, Wang W, Dhingra I, Le TM, Li CR. Cue-elicited functional connectivity of the periaqueductal gray and tonic cocaine craving. Drug And Alcohol Dependence 2020, 216: 108240. PMID: 32853997, PMCID: PMC7606798, DOI: 10.1016/j.drugalcdep.2020.108240.Peer-Reviewed Original ResearchConceptsPeriaqueductal grayPain circuitsHabitual drug useCocaine withdrawalCocaine cravingDrug useCue exposureNeutral cue exposureReward circuit dysfunctionCocaine Craving QuestionnaireCocaine cue exposureChronic cocaine useSex differencesCocaine-dependent participantsCircuit dysfunctionFemale CDVentromedial prefrontal cortexCocaine useCocaine addictionFunctional connectivityPrefrontal cortexDependent participantsWithdrawalHigher activationCocainePain and reward circuits antagonistically modulate alcohol expectancy to regulate drinking
Le TM, Zhornitsky S, Zhang S, Li CR. Pain and reward circuits antagonistically modulate alcohol expectancy to regulate drinking. Translational Psychiatry 2020, 10: 220. PMID: 32636394, PMCID: PMC7341762, DOI: 10.1038/s41398-020-00909-z.Peer-Reviewed Original ResearchMeSH KeywordsAlcohol DrinkingBrain MappingHumansMagnetic Resonance ImagingPainPeriaqueductal GrayRewardConceptsMedial orbitofrontal cortexPath modelCue exposure taskWhole-brain regressionAlcohol cue exposurePAG connectivityPotential aversive effectsExposure tasksCue exposureAlcohol expectanciesSocial pleasureDrinking severityOrbitofrontal cortexFMRI dataConnectivity strengthPrecentral gyrusOccipital cortexPSP scoresAlcohol useAversive effectsExcessive drinkingNegative associationExpectancyPleasureCortex