2018
Relationship between fMRI response during a nonverbal memory task and marijuana use in college students
Dager AD, Tice MR, Book GA, Tennen H, Raskin SA, Austad CS, Wood RM, Fallahi CR, Hawkins KA, Pearlson GD. Relationship between fMRI response during a nonverbal memory task and marijuana use in college students. Drug And Alcohol Dependence 2018, 188: 71-78. PMID: 29754029, PMCID: PMC6756147, DOI: 10.1016/j.drugalcdep.2018.03.025.Peer-Reviewed Original ResearchConceptsInferior frontal gyrusMJ usersFMRI responsesCollege studentsMemory taskMJ useFunctional magnetic resonance imaging (fMRI) responsesNonverbal memory tasksLower fMRI responseRecognition memoryNeural correlatesMagnetic resonance imaging responseFrontal gyrusVisual encodingRecognition taskOccupational functioningAge 18Memory dysfunctionMarijuana useAcademic performanceLeft hippocampusHippocampal dysfunctionGroup differencesRight hippocampusTask
2015
Cognitive performance and neuropsychiatric symptoms in early, untreated Parkinson's disease
Weintraub D, Simuni T, Caspell‐Garcia C, Coffey C, Lasch S, Siderowf A, Aarsland D, Barone P, Burn D, Chahine M, Eberling J, Espay AJ, Foster ED, Leverenz JB, Litvan I, Richard I, Troyer MD, Hawkins KA, Initiative T. Cognitive performance and neuropsychiatric symptoms in early, untreated Parkinson's disease. Movement Disorders 2015, 30: 919-927. PMID: 25737166, PMCID: PMC4855523, DOI: 10.1002/mds.26170.Peer-Reviewed Original ResearchConceptsParkinson's Progression Markers InitiativeNeuropsychiatric symptomsPD patientsHealthy controlsProgression Markers InitiativeParkinson's diseaseCognitive impairmentUntreated PD patientsDopamine replacement therapySignificant depressive symptomsGroup differencesSymptoms of depressionQuality of lifeMild cognitive impairmentUntreated patientsDisease courseReplacement therapyICD symptomsControl disordersDepressive symptomsGeneral populationPatientsMeeting criteriaMulti-site studyBiological predictors