2023
Cognitive training for children with ADHD: composite cognitive score outcome in a randomized controlled trial
Bikic A, Dalsgaard S, Pittman B, Leckman J, Wexler B. Cognitive training for children with ADHD: composite cognitive score outcome in a randomized controlled trial. Nordic Journal Of Psychiatry 2023, 78: 87-91. PMID: 37905332, DOI: 10.1080/08039488.2023.2270954.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderCognitive trainingDeficit/hyperactivity disorderComposite cognition scoreSessions of trainingCognitive functioningHyperactivity disorderCognitive improvementCognition scoresTraining sessionsMixed resultsFrequency of trainingTrainingChildrenSessionsIntervention groupCognitionInterventionFunctioningPost Hoc AnalysisScore outcomesControl groupPrevious studiesDisordersOutcomes
2020
An integrated program of computer-presented and physical cognitive training exercises for children with attention-deficit/hyperactivity disorder
Wexler BE, Vitulano LA, Moore C, Katsovich L, Smith SD, Rush C, Grantz H, Dong J, Leckman JF. An integrated program of computer-presented and physical cognitive training exercises for children with attention-deficit/hyperactivity disorder. Psychological Medicine 2020, 51: 1524-1535. PMID: 32090720, DOI: 10.1017/s0033291720000288.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderExperimental medicine approachTAU groupMedicine approachHyperactivity disorderWeeks of treatmentCombined subtypeDiagnosis of ADHDClinical trial designHyperactive-impulsive subtypeAttention-deficit/hyperactivity disorderCross-over designDeficit hyperactivity disorderClinical improvementClinical symptomsRandomized crossCognitive dysfunctionCT groupPathophysiological heterogeneityCONSORT recommendationsTrial designResponse rateChange scoresSubtypesTargeted pathology
2018
Attention and executive functions computer training for attention-deficit/hyperactivity disorder (ADHD): results from a randomized, controlled trial
Bikic A, Leckman JF, Christensen TØ, Bilenberg N, Dalsgaard S. Attention and executive functions computer training for attention-deficit/hyperactivity disorder (ADHD): results from a randomized, controlled trial. European Child & Adolescent Psychiatry 2018, 27: 1563-1574. PMID: 29644473, DOI: 10.1007/s00787-018-1151-y.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderCognitive functionMultiple cognitive functionsComputer training programCognitive trainingHyperactivity disorderComputer trainingTraining programOutcome measuresFunctional outcome measuresIntervention groupTrainingChildrenAttentionMeasuresSecondary outcome measuresDate of registrationControl groupSignificant beneficial effectDisordersInterventionSingle-blind trialSignificant effectOutcomesTrials
2017
A double-blind randomized pilot trial comparing computerized cognitive exercises to Tetris in adolescents with attention-deficit/hyperactivity disorder
Bikic A, Christensen TØ, Leckman JF, Bilenberg N, Dalsgaard S. A double-blind randomized pilot trial comparing computerized cognitive exercises to Tetris in adolescents with attention-deficit/hyperactivity disorder. Nordic Journal Of Psychiatry 2017, 71: 455-464. PMID: 28598701, DOI: 10.1080/08039488.2017.1328070.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderComputerized cognitive exercisesCognitive exercisesHyperactivity disorderComputer game TetrisSignificant intra-group changesADHD symptom measuresSignificant group differencesLarge effect sizesDouble-blind randomized pilot trialBrain trainingSustained attentionCognitive testsGame TetrisMotivation questionnaireHome-based interventionGroup differencesSignificant beneficial effectRandomized pilot trialActive placeboIntra-group changesTetrisAdolescentsEffect sizeBeneficial effects
2015
Cognitive computer training in children with attention deficit hyperactivity disorder (ADHD) versus no intervention: study protocol for a randomized controlled trial
Bikic A, Leckman JF, Lindschou J, Christensen TØ, Dalsgaard S. Cognitive computer training in children with attention deficit hyperactivity disorder (ADHD) versus no intervention: study protocol for a randomized controlled trial. Trials 2015, 16: 480. PMID: 26499057, PMCID: PMC4619562, DOI: 10.1186/s13063-015-0975-8.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderDeficit hyperactivity disorderCognitive functionCognitive trainingCognitive dysfunctionHyperactivity disorderComputer trainingSymptoms of inattentionMultiple cognitive functionsCommon neurodevelopmental disorderBackgroundAttention deficit hyperactivity disorderEveryday lifeCognitive skillsADHD symptomsNeurodevelopmental disordersYoung childrenWeeks of trainingPharmacological treatmentTrainingChildrenClinical superiority trialPoor generalizationLong-term effectsControl groupIntervention groupThe association between 2D:4D ratio and cognitive empathy is contingent on a common polymorphism in the oxytocin receptor gene (OXTR rs53576)
Weisman O, Pelphrey KA, Leckman JF, Feldman R, Lu Y, Chong A, Chen Y, Monakhov M, Chew SH, Ebstein RP. The association between 2D:4D ratio and cognitive empathy is contingent on a common polymorphism in the oxytocin receptor gene (OXTR rs53576). Psychoneuroendocrinology 2015, 58: 23-32. PMID: 25935637, DOI: 10.1016/j.psyneuen.2015.04.007.Peer-Reviewed Original ResearchConceptsOxytocin receptor geneCognitive empathyRMET performanceFetal testosteroneHuman social cognitionSocial-cognitive developmentSocio-cognitive skillsRole of oxytocinSocio-affective skillsSocial cognitionPsychosocial competenceHigh fetal testosteroneIndividual differencesCognitive developmentBaron-CohenEmotional statesOXTR rs53576OXTR geneGreater identificationEmpathyCore aspectsRMETCognitionUnique supportTestosterone system
2013
Editorial Commentary: Resilience in child development – interconnected pathways to wellbeing
Panter‐Brick C, Leckman JF. Editorial Commentary: Resilience in child development – interconnected pathways to wellbeing. Journal Of Child Psychology And Psychiatry 2013, 54: 333-336. PMID: 23517424, DOI: 10.1111/jcpp.12057.Peer-Reviewed Original Research
2012
Meta-analysis of Long-Chain Polyunsaturated Fatty Acid Supplementation of Formula and Infant Cognition
Qawasmi A, Landeros-Weisenberger A, Leckman JF, Bloch MH. Meta-analysis of Long-Chain Polyunsaturated Fatty Acid Supplementation of Formula and Infant Cognition. Pediatrics 2012, 129: 1141-1149. PMID: 22641753, PMCID: PMC3362904, DOI: 10.1542/peds.2011-2127.Peer-Reviewed Original ResearchConceptsLCPUFA supplementationClinical trialsInfant formulaLong-Chain Polyunsaturated Fatty Acid SupplementationBayley ScalesPolyunsaturated Fatty Acid SupplementationTrial methodologic qualityInfants fed formulaWeighted mean differenceSecondary subgroup analysisFatty acid supplementationMeasures of neurodevelopmentInfant Development scoresFed formulaPrimary outcomeSubgroup analysisUnsupplemented formulaMethodologic qualityInclusion criteriaPrematurity statusAcid supplementationSupplementation efficacySecondary analysisPublication biasMean difference
2000
Sensory phenomena in obsessive-compulsive disorder and Tourette's disorder.
Miguel EC, do Rosário-Campos MC, Prado HS, do Valle R, Rauch SL, Coffey BJ, Baer L, Savage CR, O'Sullivan RL, Jenike MA, Leckman JF. Sensory phenomena in obsessive-compulsive disorder and Tourette's disorder. The Journal Of Clinical Psychiatry 2000, 61: 150-6; quiz 157. PMID: 10732667, DOI: 10.4088/jcp.v61n0213.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderTourette's disorderDisorder groupTic-related obsessive-compulsive disorderSensory phenomenaDisorder diagnosisMental sensationsDisorder spectrumAlone groupClinical indicesAdult outpatientsBody sensationPatientsBodily sensationsHeterogeneous disorderPatients' performanceDisordersPhenotypic featuresSensationSemistructured interviewsPresent studyRepetitive behaviorsRecent studiesGroupInner tension