2016
Regulating 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
2012
Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task
Foxe JJ, Morie KP, Laud PJ, Rowson MJ, de Bruin EA, Kelly SP. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task. Neuropharmacology 2012, 62: 2320-2327. PMID: 22326943, DOI: 10.1016/j.neuropharm.2012.01.020.Peer-Reviewed Original ResearchConceptsAlpha-band activityOscillatory brain activityBrain activityAlpha-band oscillatory activityAspects of attentionSustained attention taskHigh-density electroencephalographyMaintenance of vigilanceAttention taskTwo-hour sessionsSustained attentionResponse taskBehavioral performanceVigilant attentionMonotonous tasksOscillatory activityIngestion of caffeineTaskError rateL-theanineReduced error rateElectroencephalographyParticipantsEffects of caffeineAttention