Featured Publications
Differential Cognitive Performance in Females and Males with Regular Cannabis Use
Martin A, D’Souza D, Newman SD, Hetrick WP, O’Donnell B. Differential Cognitive Performance in Females and Males with Regular Cannabis Use. Journal Of The International Neuropsychological Society 2021, 27: 570-580. PMID: 34261548, PMCID: PMC8830784, DOI: 10.1017/s1355617721000606.Peer-Reviewed Original ResearchConceptsRegular cannabis useCannabis useCognitive measuresPsychomotor speedBiological sexHopkins Verbal Learning TestDifferential cognitive performanceNon-using peersVerbal Learning TestMeasures of intelligenceWechsler Abbreviated ScaleDigit symbol testGreatest group differencesVerbal learningDigit spanLearning TestCognitive performanceAbbreviated ScaleNeurocognitive deficitsCognitive deficitsSymbol testCannabis exposurePsychomotor performanceGroup differencesCognition
2021
Altered cerebellar-cortical resting-state functional connectivity in cannabis users
Martin A, Kim DJ, Newman SD, Cheng H, Hetrick WP, Mackie K, O’Donnell B. Altered cerebellar-cortical resting-state functional connectivity in cannabis users. Journal Of Psychopharmacology 2021, 35: 823-832. PMID: 34034553, PMCID: PMC8813046, DOI: 10.1177/02698811211019291.Peer-Reviewed Original ResearchConceptsResting-state functional connectivityNon-using peersCannabis usersCannabis useFunctional connectivityRegular cannabis usersPosterior cingulate cortexAnterior cerebellar regionsNon-motor phenomenaCingulate cortexCerebellar regionsBrain regionsAge of initiationCerebral regionsCerebellar lobulesCortexPeersLifetime useUnbiased atlas templateIndividual voxelsCerebral cortexReceptor densityCognitionCerebellumAtlas template
2017
The positive link between executive function and lifetime cannabis use in schizophrenia is not explained by current levels of superior social cognition
Helle S, Løberg EM, Gjestad R, Martin A, Lysaker PH. The positive link between executive function and lifetime cannabis use in schizophrenia is not explained by current levels of superior social cognition. Psychiatry Research 2017, 250: 92-98. PMID: 28152399, DOI: 10.1016/j.psychres.2017.01.047.Peer-Reviewed Original ResearchConceptsSocial cognitionTheory of mindExecutive functionCannabis useBell-Lysaker Emotion Recognition TestEmotion Recognition TestExecutive Functioning ScaleBetter executive functionRegular cannabis useStructural equation modelingHinting testIllicit substancesNeurocognitive vulnerabilityRecognition testNeurocognitive performanceNeurocognitive deficitsCognitionEquation modelingFlexibility componentsAlcohol useFunctioning ScaleLifetime cannabisIndirect effectsPositive linkSchizophrenia