2017
Early Initiation of Amphetamine-Type Stimulants (ATS) Use Associated with Lowered Cognitive Performance among Individuals with Co-Occurring Opioid and ATS Use Disorders in Malaysia
Chooi WT, Zaharim N, Desrosiers A, Ahmad I, Yasin MAM, Jaapar S, Schottenfeld RS, Vicknasingam BK, Chawarski MC. Early Initiation of Amphetamine-Type Stimulants (ATS) Use Associated with Lowered Cognitive Performance among Individuals with Co-Occurring Opioid and ATS Use Disorders in Malaysia. Journal Of Psychoactive Drugs 2017, 49: 326-332. PMID: 28661714, PMCID: PMC6218246, DOI: 10.1080/02791072.2017.1342152.Peer-Reviewed Original ResearchConceptsCognitive performanceStandard Progressive MatricesRey-Osterrieth Complex Figure TestSymbol digit substitution taskCognitive performance groupsComplex Figure TestRaven's Standard Progressive MatricesATS use disorderATS useDigit spanTrail MakingCognitive functioningFigures TestAmphetamine-type stimulant useSubstitution taskProgressive MatricesFunctioning profilesDrug useCo-occurring opioidGroup differencesCurrent study findingsStimulant useClusters of individualsATS dependenceUse disorders
2015
Evaluation of cognitive functioning of individuals with co-occurring opiate and amphetamine-type stimulants use disorders in Malaysia
Chooi W, Zaharim N, Desrosiers A, Ahmad I, Yasin M, Jaapar S, Schottenfeld R, Kasinather V, Chawarski M. Evaluation of cognitive functioning of individuals with co-occurring opiate and amphetamine-type stimulants use disorders in Malaysia. Drug And Alcohol Dependence 2015, 156: e43-e44. DOI: 10.1016/j.drugalcdep.2015.07.1036.Peer-Reviewed Original Research