2020
Depression predicts cognitive and functional decline one month after coronary artery bypass graft surgery (Neuropsychiatric Outcomes After Heart Surgery study)
Oldham MA, Lin I, Hawkins KA, Li F, Yuh DD, Lee HB. Depression predicts cognitive and functional decline one month after coronary artery bypass graft surgery (Neuropsychiatric Outcomes After Heart Surgery study). International Journal Of Geriatric Psychiatry 2020, 36: 452-460. PMID: 33022808, PMCID: PMC9326959, DOI: 10.1002/gps.5443.Peer-Reviewed Original ResearchConceptsCoronary artery bypass graft surgeryArtery bypass graft surgeryBypass graft surgeryCABG surgeryGraft surgeryCDR-SBProspective observational cohort studyOlder ageOne monthHamilton Depression Rating ScaleClinical Dementia Rating SumHeart Surgery studyObservational cohort studyDepression Rating ScaleSemi-structured clinical interviewTotal study sampleHopkins Verbal Learning TestPostoperative deliriumPreoperative depressionWord Fluency TestCohort studyVerbal Learning TestNeuropsychiatric outcomesTertiary careFunctional outcomeNeuropsychiatric symptoms and cognitive abilities over the initial quinquennium of Parkinson disease
Weintraub D, Caspell‐Garcia C, Simuni T, Cho HR, Coffey CS, Aarsland D, Alcalay RN, Barrett MJ, Chahine LM, Eberling J, Espay AJ, Hamilton J, Hawkins KA, Leverenz J, Litvan I, Richard I, Rosenthal LS, Siderowf A, York M, Initiative P. Neuropsychiatric symptoms and cognitive abilities over the initial quinquennium of Parkinson disease. Annals Of Clinical And Translational Neurology 2020, 7: 449-461. PMID: 32285645, PMCID: PMC7187707, DOI: 10.1002/acn3.51022.Peer-Reviewed Original ResearchConceptsParkinson's disease participantsNeuropsychiatric symptomsParkinson's diseaseHealthy controlsCognitive impairmentMedication useYear 5Anticholinergic medication useCross-sectional prevalenceParkinson's disease patientsHypnotic useDisease patientsNeuropsychiatric featuresDisease onsetAnnual visitsSymptomsDisorder subtypesAbsolute prevalenceDiseaseTime pointsPrevalenceBaselineImpairmentParticipantsOnset
2018
Depression Predicts Delirium After Coronary Artery Bypass Graft Surgery Independent of Cognitive Impairment and Cerebrovascular Disease: An Analysis of the Neuropsychiatric Outcomes After Heart Surgery Study
Oldham MA, Hawkins KA, Lin IH, Deng Y, Hao Q, Scoutt LM, Yuh DD, Lee HB. Depression Predicts Delirium After Coronary Artery Bypass Graft Surgery Independent of Cognitive Impairment and Cerebrovascular Disease: An Analysis of the Neuropsychiatric Outcomes After Heart Surgery Study. American Journal Of Geriatric Psychiatry 2018, 27: 476-486. PMID: 30709616, PMCID: PMC6443412, DOI: 10.1016/j.jagp.2018.12.025.Peer-Reviewed Original ResearchConceptsMiddle cerebral arteryMild cognitive impairmentCerebrovascular diseaseCognitive impairmentRisk factorsCoronary artery bypass graft surgeryStenosis severityProspective observational cohort studyArtery bypass graft surgeryBilateral middle cerebral arteriesTertiary care academic hospitalHeart Surgery studyPreoperative cognitive assessmentUndergoing CABG surgeryBypass graft surgeryConfusion Assessment MethodRisk of deliriumDelirium risk factorsObservational cohort studyPostoperative day 2Clinical Dementia RatingDepression InterviewPreoperative depressionStructured HamiltonStudy psychiatristThe effect of age and smoking on the hippocampus and memory in late middle age
Hawkins KA, Emadi N, Pearlson GD, Taylor B, Khadka S, King D, Blank K. The effect of age and smoking on the hippocampus and memory in late middle age. Hippocampus 2018, 28: 846-849. PMID: 30070068, DOI: 10.1002/hipo.23014.Peer-Reviewed Original ResearchConceptsSmoking historyHippocampal volumeHeavy smoking historyVascular risk factorsMiddle-aged subjectsMRI brain scanningAPOE e4 genotypeEffect of ageHeavy smokingHippocampal atrophyAlcohol historyRisk factorsE4 genotypeBrain scanningAPOE e4Neuropsychological assessment batteryHippocampus atrophyFemale subjectsGlobal cognitionMemory disordersData extractionMemory declineAssessment BatteryAgeSmokingCognition among individuals along a spectrum of increased risk for Parkinson’s disease
Chahine LM, Urbe L, Caspell-Garcia C, Aarsland D, Alcalay R, Barone P, Burn D, Espay AJ, Hamilton JL, Hawkins KA, Lasch S, Leverenz JB, Litvan I, Richard I, Siderowf A, Coffey CS, Simuni T, Weintraub D, Initiative T. Cognition among individuals along a spectrum of increased risk for Parkinson’s disease. PLOS ONE 2018, 13: e0201964. PMID: 30125297, PMCID: PMC6101368, DOI: 10.1371/journal.pone.0201964.Peer-Reviewed Original ResearchConceptsParkinson's diseaseIdiopathic REM sleep behavior disorderParkinson's Progression Markers Initiative (PPMI) studyDe novo Parkinson's diseaseREM sleep behavior disorderDopamine transporterNon-motor symptomsNovo Parkinson's diseaseSleep behavior disorderNon-motor featuresSymbol Digit Modalities TestBaseline neuropsychological performanceMontreal Cognitive AssessmentFuture neurodegenerationLewy bodiesInclusion criteriaSpectrum of riskMutation carriersInitiative studyCohortBehavior disorderCognitive functionCognitive test scoresModalities TestNeuropsychological performanceGuanfacine treatment for prefrontal cognitive dysfunction in older participants: a randomized clinical trial
Barcelos NM, Van Ness PH, Wagner AF, MacAvoy MG, Mecca AP, Anderson GM, Trentalange M, Hawkins KA, Sano M, Arnsten AFT, van Dyck CH. Guanfacine treatment for prefrontal cognitive dysfunction in older participants: a randomized clinical trial. Neurobiology Of Aging 2018, 70: 117-124. PMID: 30007160, PMCID: PMC6503670, DOI: 10.1016/j.neurobiolaging.2018.05.033.Peer-Reviewed Original ResearchConceptsDose of guanfacineQuality of lifeZ-scoreCognitive functionPrefrontal cognitive dysfunctionCommon adverse eventsPrimary outcome measureRandomized clinical trialsGlobal functionOlder participantsHealthy older participantsPrefrontal cognitive functionDry mouthAdverse eventsAgonist guanfacineClinical trialsGuanfacine treatmentCognitive dysfunctionMean changeOutcome measuresPlaceboGuanfacineOlder individualsWeeksDoseRelationship 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
2017
Cognition and the course of prodromal Parkinson's disease
Weintraub D, Chahine LM, Hawkins KA, Siderowf A, Eberly S, Oakes D, Seibyl J, Stern MB, Marek K, Jennings D, Investigators T. Cognition and the course of prodromal Parkinson's disease. Movement Disorders 2017, 32: 1640-1645. PMID: 29063713, PMCID: PMC5722226, DOI: 10.1002/mds.27189.Peer-Reviewed Original ResearchConceptsSpeed/attentionCognitive declineProdromal participantsBaseline neuropsychological test performanceExecutive function/Role of cognitionNeuropsychological test performanceFuture cognitive declineBaseline cognitive scoresCognitive domainsGlobal cognitionBaseline cognitionCognitive scoresCognitionTest performanceFuture declinePD-convertersDopamine systemHyposmic individualsProdromal PDLongitudinal changesFunction/ParticipantsDopamine transporter bindingIndividualsMultiple modality biomarker prediction of cognitive impairment in prospectively followed de novo Parkinson disease
Caspell-Garcia C, Simuni T, Tosun-Turgut D, Wu IW, Zhang Y, Nalls M, Singleton A, Shaw LA, Kang JH, Trojanowski JQ, Siderowf A, Coffey C, Lasch S, Aarsland D, Burn D, Chahine LM, Espay AJ, Foster ED, Hawkins KA, Litvan I, Richard I, Weintraub D, Initiative T. Multiple modality biomarker prediction of cognitive impairment in prospectively followed de novo Parkinson disease. PLOS ONE 2017, 12: e0175674. PMID: 28520803, PMCID: PMC5435130, DOI: 10.1371/journal.pone.0175674.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAmyloid beta-PeptidesBiomarkersBrain-Derived Neurotrophic FactorCatechol O-MethyltransferaseCognitive DysfunctionDiffusion Tensor ImagingDopamine Plasma Membrane Transport ProteinsFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedParkinson DiseasePolymorphism, Single NucleotideTau ProteinsTomography, Emission-Computed, Single-PhotonConceptsParkinson's diseaseCognitive impairmentDe novo Parkinson's diseaseDopamine transporter single-photon emissionLongitudinal mixed-effects modelsNovo Parkinson's diseaseYears of diseaseIdiopathic Parkinson's diseaseMovement Disorders CenterSingle nucleotide polymorphismsStructural magnetic resonance imagingClinical trial designLongitudinal structural MRIMagnetic resonance imagingSingle photon emissionDevelopment of treatmentsDiffusion tensor imagingBiomarker predictorsPlaque pathologyAmyloid pathologyDopamine deficiencyDopaminergic deficitUnivariate analysisBiomarker changesDisorders CenterLongitudinal influence of alcohol and marijuana use on academic performance in college students
Meda SA, Gueorguieva RV, Pittman B, Rosen RR, Aslanzadeh F, Tennen H, Leen S, Hawkins K, Raskin S, Wood RM, Austad CS, Dager A, Fallahi C, Pearlson GD. Longitudinal influence of alcohol and marijuana use on academic performance in college students. PLOS ONE 2017, 12: e0172213. PMID: 28273162, PMCID: PMC5342177, DOI: 10.1371/journal.pone.0172213.Peer-Reviewed Original ResearchHyperinsulinemia and elevated systolic blood pressure independently predict white matter hyperintensities with associated cognitive decrement in the middle-aged offspring of dementia patients
Hawkins KA, Emadi N, Pearlson GD, Winkler AM, Taylor B, Dulipsingh L, King D, Pittman B, Blank K. Hyperinsulinemia and elevated systolic blood pressure independently predict white matter hyperintensities with associated cognitive decrement in the middle-aged offspring of dementia patients. Metabolic Brain Disease 2017, 32: 849-857. PMID: 28255864, DOI: 10.1007/s11011-017-9980-9.Peer-Reviewed Original ResearchConceptsSystolic blood pressureWMH volumeVascular riskBlood pressurePlasma insulinDementia patientsMRI white matter hyperintensity volumeCognitive declineElevated systolic blood pressureSmall dense LDL-cholesterolWhite matter hyperintensity volumeH systolic BPIndependent risk factorDense LDL cholesterolCognitive decrementsBody mass indexWhite matter damageWhite matter hyperintensitiesApoE ε4 effectMiddle-aged offspringCerebral infarctsLifestyle modificationAggressive treatmentCerebrovascular damageLDL cholesterolComposite impulsivity-related domains in college students
Khadka S, Stevens MC, Aslanzadeh F, Narayanan B, Hawkins KA, Austad CS, Raskin SA, Tennen H, Wood RM, Fallahi C, Potenza MN, Pearlson GD. Composite impulsivity-related domains in college students. Journal Of Psychiatric Research 2017, 90: 118-125. PMID: 28273441, DOI: 10.1016/j.jpsychires.2017.02.016.Peer-Reviewed Original ResearchConceptsConfirmatory factor analysisAttention deficit hyperactivity disorderCollege studentsImpulsivity-related constructsImpulsivity/compulsivityComputerized behavioral measuresDeficit hyperactivity disorderImpulsivity-related behaviorsSelf-report assessmentsSubsequent psychometric analysesHyperactivity disorderBehavioral measuresDistinct constructsImpulsive actionAppetite motivationMultidimensional constructMultiple regression analysisDisorder riskNaturalistic frameworkSimilar analytical approachPsychometric analysisFactor analysisFuture researchIndependent samplesCurrent study
2015
Cognitive and functional status predictors of delirium and delirium severity after coronary artery bypass graft surgery: an interim analysis of the Neuropsychiatric Outcomes After Heart Surgery study
Oldham MA, Hawkins KA, Yuh DD, Dewar ML, Darr UM, Lysyy T, Lee HB. Cognitive and functional status predictors of delirium and delirium severity after coronary artery bypass graft surgery: an interim analysis of the Neuropsychiatric Outcomes After Heart Surgery study. International Psychogeriatrics 2015, 27: 1929-1938. PMID: 26423721, PMCID: PMC9310349, DOI: 10.1017/s1041610215001477.Peer-Reviewed Original ResearchConceptsMild cognitive impairmentHeart Surgery studyConfusion Assessment MethodPost-operative deliriumDelirium severityLawton IADL scoresIADL scoresNeuropsychiatric outcomesDelirium IndexSurgery StudyCoronary artery bypass graft surgeryArtery bypass graft surgeryPost-operative day 2Clinical Dementia Rating ScaleMCI-NCElective CABG surgeryBypass graft surgeryObservational cohort studyDementia Rating ScaleCABG surgeryGraft surgeryCohort studyFunctional statusFunctional impairmentCDR sumCognition in individuals at risk for Parkinson's: Parkinson associated risk syndrome (PARS) study findings
Chahine M, Weintraub D, Hawkins KA, Siderowf A, Eberly S, Oakes D, Seibyl J, Stern MB, Marek K, Jennings D, Investigators T. Cognition in individuals at risk for Parkinson's: Parkinson associated risk syndrome (PARS) study findings. Movement Disorders 2015, 31: 86-94. PMID: 26293177, PMCID: PMC4827252, DOI: 10.1002/mds.26373.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAnxietyAttentionCocaineCognition DisordersCohort StudiesExecutive FunctionFemaleHumansLanguageMaleMemoryMiddle AgedNeurogenic BowelNeuropsychological TestsOlfaction DisordersParkinson DiseaseProtein BindingRadiopharmaceuticalsSelf ReportSeverity of Illness IndexStatistics, NonparametricSurveys and QuestionnairesTomography, Emission-Computed, Single-PhotonVisual PerceptionConceptsExecutive function/Global cognitionRelative impairmentSpecific cognitive domainsSpeed/attentionGlobal cognitive abilityNeuropsychological test batteryLower global cognitionFunction/Cognitive abilitiesCognitive domainsCognitive profileVisuospatial abilitiesLanguage domainsCognitive testingTest batteryCognitionNormative scoresMemoryLower mean scoresHealthy adultsNon-motor featuresIndividualsStudy findingsNon-motor symptomsRBANS Norms based on the Relationship of Age, Gender, Education, and WRAT-3 Reading to Performance within an Older African American Sample
Andreotti C, Hawkins KA. RBANS Norms based on the Relationship of Age, Gender, Education, and WRAT-3 Reading to Performance within an Older African American Sample. The Clinical Neuropsychologist 2015, 29: 442-465. PMID: 26035646, DOI: 10.1080/13854046.2015.1039589.Peer-Reviewed Original ResearchCognitive 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
2014
Genetic association of impulsivity in young adults: a multivariate study
Khadka S, Narayanan B, Meda SA, Gelernter J, Han S, Sawyer B, Aslanzadeh F, Stevens MC, Hawkins KA, Anticevic A, Potenza MN, Pearlson GD. Genetic association of impulsivity in young adults: a multivariate study. Translational Psychiatry 2014, 4: e451-e451. PMID: 25268255, PMCID: PMC4199418, DOI: 10.1038/tp.2014.95.Peer-Reviewed Original Research
2013
Transcranial Magnetic Stimulation of Wernicke’s and Right Homologous Sites to Curtail “Voices”: A Randomized Trial
Hoffman RE, Wu K, Pittman B, Cahill JD, Hawkins KA, Fernandez T, Hannestad J. Transcranial Magnetic Stimulation of Wernicke’s and Right Homologous Sites to Curtail “Voices”: A Randomized Trial. Biological Psychiatry 2013, 73: 1008-1014. PMID: 23485015, PMCID: PMC3641174, DOI: 10.1016/j.biopsych.2013.01.016.Peer-Reviewed Original Research
2012
The course of cognitive functioning over six months in individuals at clinical high risk for psychosis
Barbato M, Colijn MA, Keefe RS, Perkins DO, Woods SW, Hawkins KA, Christensen BK, Addington J. The course of cognitive functioning over six months in individuals at clinical high risk for psychosis. Psychiatry Research 2012, 206: 195-199. PMID: 23159196, PMCID: PMC3600156, DOI: 10.1016/j.psychres.2012.10.013.Peer-Reviewed Original ResearchConceptsClinical high riskCHR individualsComprehensive cognitive test batteryCognitive test batteryCognitive impairmentFuture longitudinal researchCognitive functioningCognitive performanceCognitive testsTest batteryLongitudinal researchCognitionPoor performanceLongitudinal changesPsychosisIndividualsParticipantsImpairmentBaseline participantsFunctioningPerformanceBatteriesResearchProdromeGlycine treatment of the risk syndrome for psychosis: Report of two pilot studies
Woods SW, Walsh BC, Hawkins KA, Miller TJ, Saksa JR, D'Souza DC, Pearlson GD, Javitt DC, McGlashan TH, Krystal JH. Glycine treatment of the risk syndrome for psychosis: Report of two pilot studies. European Neuropsychopharmacology 2012, 23: 931-940. PMID: 23089076, PMCID: PMC4028140, DOI: 10.1016/j.euroneuro.2012.09.008.Peer-Reviewed Original ResearchConceptsPilot studyRisk syndromeSyndrome patientsNegative symptomsShort-term pilot studyEffect sizeAdjunctive antipsychotic medicationOpen-label studyPatients meeting criteriaNMDA receptor functionDurability of effectPsychosis risk symptomsGlycine site agonistsGroup effect sizesWeeks of evaluationAntipsychotic medicationSyndrome subjectsPromising effect sizesTreatment needsLarge effect sizesMeeting criteriaCognitive impairmentReduced symptomsReceptor functionSymptoms