2014
Working memory and reward association learning impairments in obesity
Coppin G, Nolan-Poupart S, Jones-Gotman M, Small DM. Working memory and reward association learning impairments in obesity. Neuropsychologia 2014, 65: 146-155. PMID: 25447070, PMCID: PMC4259845, DOI: 10.1016/j.neuropsychologia.2014.10.004.Peer-Reviewed Original ResearchMeSH KeywordsAdultAssociation LearningBody Mass IndexCognition DisordersFemaleHumansMaleMemory, Short-TermObesityOverweightRewardYoung AdultConceptsHealthy weight individualsNegative outcomesExplicit learningReward association learningProbabilistic learning taskFunction of groupHealthy weight groupObese individualsReward associationsStimulus-rewardExecutive functionAssociation learningLearning taskExperiment 1Learning impairmentHealthy weightParadoxical preferenceWeight individualsPositive outcomesMemoryWeight groupInfluence of obesitySecond experimentCurrent studyDeficits
2008
Modulation of the spatial attention network by incentives in healthy aging and mild cognitive impairment
Bagurdes LA, Mesulam MM, Gitelman DR, Weintraub S, Small DM. Modulation of the spatial attention network by incentives in healthy aging and mild cognitive impairment. Neuropsychologia 2008, 46: 2943-2948. PMID: 18602410, DOI: 10.1016/j.neuropsychologia.2008.06.005.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAgingAnalysis of VarianceAttentionCase-Control StudiesCerebral CortexCognition DisordersDementiaDiscrimination, PsychologicalHumansLimbic SystemMagnetic Resonance ImagingMatched-Pair AnalysisMiddle AgedMotivationReaction TimeReference ValuesRewardSeverity of Illness IndexSpace PerceptionConceptsSpatial attentionSpatial attention networkAttentional shiftsMild cognitive impairmentAttention networkHealthy agingOrbitofrontal cortexCovert attention taskSelective spatial attentionCognitive impairmentUnderlying neural circuitryAD-related declineAttention taskSelective attentionEmotional contentOFC activationPCC activationSpatial cuesSecondary reinforcerInfluence of incentivesPosterior cingulateNeural circuitryNovel eventsCurrent experimentsBehavioral effects