2017
Oxytocin under opioid antagonism leads to supralinear enhancement of social attention
Dal Monte O, Piva M, Anderson KM, Tringides M, Holmes AJ, Chang SWC. Oxytocin under opioid antagonism leads to supralinear enhancement of social attention. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: 5247-5252. PMID: 28461466, PMCID: PMC5441805, DOI: 10.1073/pnas.1702725114.Peer-Reviewed Original ResearchConceptsSocial attentionMutual eye contactSocial cognitionReward receiptParticular social importanceEfficacy of oxytocinEye contactSocial dysfunctionOpioid antagonismSocial contextGaze interactionHuman brainEntire sessionOxytocinΚ-opioid receptor geneFacial regionOT geneAttentionCognitionSocial importanceStrong effectMonkeysOpioid systemSessionsContext
2016
Fuel not fun: Reinterpreting attenuated brain responses to reward in obesity
Kroemer NB, Small DM. Fuel not fun: Reinterpreting attenuated brain responses to reward in obesity. Physiology & Behavior 2016, 162: 37-45. PMID: 27085908, PMCID: PMC4971522, DOI: 10.1016/j.physbeh.2016.04.020.Peer-Reviewed Original ResearchConceptsFood-related stimuliBrain responsesReward-related learningReward sensitivityReward deficiencyReduced reward sensitivityPrimary food rewardReward receiptMilkshake receiptStriatal responsesReward deficitsFood rewardSubjective valueReinforcement learning frameworkRewardDopamine signalingFood anticipationDorsal striatumAnhedoniaAnticipatoryDopaminergic regionsStimuliConsummatory responsesAlternative viewLearningRegulating task-monitoring systems in response to variable reward contingencies and outcomes in cocaine addicts
Morie KP, De Sanctis P, Garavan H, Foxe JJ. Regulating task-monitoring systems in response to variable reward contingencies and outcomes in cocaine addicts. Psychopharmacology 2016, 233: 1105-1118. PMID: 26861797, DOI: 10.1007/s00213-015-4191-8.Peer-Reviewed Original ResearchConceptsReward processingTask successConsummatory reward processingEvent-related potentialsSpeeded response taskValue of rewardsMeasures of anhedoniaCocaine usersNeural measuresReward contingenciesPredictive cuesReward motivationReward receiptReward outcomesTask contingenciesResponse taskActive cocaine abusersReward probabilityHedonic toneAnticipatory responsesVulnerability markerReward scheduleMonitoring deficienciesAnhedoniaReward
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