2023
Age-related, multivariate associations between white matter microstructure and behavioral performance in three executive function domains
Anderson J, Calhoun V, Pearlson G, Hawkins K, Stevens M. Age-related, multivariate associations between white matter microstructure and behavioral performance in three executive function domains. Developmental Cognitive Neuroscience 2023, 64: 101318. PMID: 37875033, PMCID: PMC10618425, DOI: 10.1016/j.dcn.2023.101318.Peer-Reviewed Original ResearchConceptsExecutive function domainsResponse inhibitionWhite matter microstructureLower response inhibitionStructure-cognition relationshipsEF abilitiesBehavioral performanceCognitive imbalanceNeurocognitive testsFunction domainTest performanceYoung adulthoodFractional anisotropyBrain changesAge 12Young adultsSS performanceWhite matter FA valuesGreater relianceWhite matter changesWhite matter microstructural differencesSubjects ages 12White matter skeletonIndependent componentsMultivariate associations
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 outcome
2018
The 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 performance
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 participantsFunctioningPerformanceBatteriesResearchProdrome
2011
Mini-Mental State Exam Performance of Older African Americans: Effect of Age, Gender, Education, Hypertension, Diabetes, and the Inclusion of Serial 7s Subtraction Versus “World” Backward on Score
Hawkins KA, Cromer JR, Piotrowski AS, Pearlson GD. Mini-Mental State Exam Performance of Older African Americans: Effect of Age, Gender, Education, Hypertension, Diabetes, and the Inclusion of Serial 7s Subtraction Versus “World” Backward on Score. Archives Of Clinical Neuropsychology 2011, 26: 645-652. PMID: 21813555, DOI: 10.1093/arclin/acr054.Peer-Reviewed Original Research
2009
The effects of apolipoprotein E on non-impaired cognitive functioning: A meta-analysis
Wisdom NM, Callahan JL, Hawkins KA. The effects of apolipoprotein E on non-impaired cognitive functioning: A meta-analysis. Neurobiology Of Aging 2009, 32: 63-74. PMID: 19285755, DOI: 10.1016/j.neurobiolaging.2009.02.003.Peer-Reviewed Original ResearchConceptsGlobal cognitive abilityEpisodic memoryCognitive abilitiesApoE allele 4Previous meta-analytic findingsMeta-analytic findingsPossible moderating variablesHealthy adultsPerceptual speedExecutive functioningCognitive functioningNeurocognitive functionNeurocognitive examinationModerating variableCurrent studyMemoryFunctioningSmall effectAdultsMeasuresPrevious examinationsAbilityParticipantsCurrent literatureAllele 4
2008
Neuropsychological course in the prodrome and first episode of psychosis: Findings from the PRIME North America Double Blind Treatment Study
Hawkins KA, Keefe RS, Christensen BK, Addington J, Woods SW, Callahan J, Zipursky RB, Perkins DO, Tohen M, Breier A, McGlashan TH. Neuropsychological course in the prodrome and first episode of psychosis: Findings from the PRIME North America Double Blind Treatment Study. Schizophrenia Research 2008, 105: 1-9. PMID: 18774696, DOI: 10.1016/j.schres.2008.07.008.Peer-Reviewed Original ResearchConceptsNeuropsychological courseDouble-blind treatment studyNeuropsychological StatusPlacebo-assigned subjectsPutative prodromal stateDouble-blind trialFrank psychotic episodeEarly convertersOlanzapine treatmentNeuropsychological deficienciesFrank psychosisMedication studiesFirst episodePsychotic episodeProdromal stateHigh riskBlind trialNeuropsychological declineTreatment studiesPsychotic conditionsPsychosisLate convertersOlanzapineProdromeInitial assessment
2007
Aripiprazole in the treatment of the psychosis prodrome
Woods SW, Tully EM, Walsh BC, Hawkins KA, Callahan JL, Cohen SJ, Mathalon DH, Miller TJ, McGlashan TH. Aripiprazole in the treatment of the psychosis prodrome. The British Journal Of Psychiatry. Supplement 2007, 191: s96-s101. PMID: 18055946, DOI: 10.1192/bjp.191.51.s96.Peer-Reviewed Original ResearchConceptsPsychosis prodromeMixed-effects repeated-measures analysisShort-term efficacySymptom total scoreSingle-site trialRepeated-measures analysisAripiprazole treatmentAdverse eventsFinal visitSafety profilePromising efficacyProdromal phasePsychotic disordersScale scoreBaseline levelsWeight gainFirst weekProdromeTotal scoreAripiprazoleTreatmentNeuropsychological measuresPreliminary evidenceWeeksEfficacy
2006
Light to Moderate Alcohol Consumption Is Associated With Better Cognitive Function Among Older Male Veterans Receiving Primary Care
Reid MC, Van Ness PH, Hawkins KA, Towle V, Concato J, Guo Z. Light to Moderate Alcohol Consumption Is Associated With Better Cognitive Function Among Older Male Veterans Receiving Primary Care. Journal Of Geriatric Psychiatry And Neurology 2006, 19: 98-105. PMID: 16690995, DOI: 10.1177/0891988706286513.Peer-Reviewed Original ResearchConceptsModerate alcohol consumptionOlder male veteransBetter cognitive functionCognitive functionFormer drinkersPrimary careMale veteransModerate drinkingAlcohol consumptionBetter cognitive performanceOlder personsVeterans Administration primary care clinicCognitive performancePrimary care clinicsHopkins Verbal Learning TestCare clinicsVerbal Learning TestMean ageCurrent drinkersMedical statusOlder menReference groupLifetime useLearning TestDrinkers
1997
Normal neurocognitive performance after extended practice in patients with schizophrenia
Wexler B, Hawkins K, Rounsaville B, Anderson M, Sernyak M, Green M. Normal neurocognitive performance after extended practice in patients with schizophrenia. Schizophrenia Research 1997, 26: 173-180. PMID: 9323348, DOI: 10.1016/s0920-9964(97)00053-4.Peer-Reviewed Original ResearchConceptsWeeks of practiceSpecific neurocognitive tasksNormal neurocognitive performancePerformance of patientsImplicit learningMemory taskNeurocognitive tasksNeurocognitive performanceExtended practiceSame taskMotor tasksNeurocognitive improvementDifficulty levelOngoing instructionPerformance declineBase payTaskSupranormal performanceSchizophreniaHealthy controlsMemoryLearningInstructionTrainingPerformanceCognition, negative symptoms, and diagnosis: a comparison of schizophrenic, bipolar, and control samples
Hawkins KA, Hoffman RE, Quinlan DM, Rakfeldt J, Docherty NM, Sledge WH. Cognition, negative symptoms, and diagnosis: a comparison of schizophrenic, bipolar, and control samples. Journal Of Neuropsychiatry 1997, 9: 81-89. PMID: 9017533, DOI: 10.1176/jnp.9.1.81.Peer-Reviewed Original Research