2004
Neuropsychological status of subjects at high risk for a first episode of psychosis
Hawkins KA, Addington J, Keefe RS, Christensen B, Perkins DO, Zipurksy R, Woods SW, Miller TJ, Marquez E, Breier A, McGlashan TH. Neuropsychological status of subjects at high risk for a first episode of psychosis. Schizophrenia Research 2004, 67: 115-122. PMID: 14984870, DOI: 10.1016/j.schres.2003.08.007.Peer-Reviewed Original ResearchConceptsFirst episodeFirst psychotic episodeLevel of impairmentSchizophrenia prodromePsychotic episodeHigh riskMulti-site studyProdromal interventionPopulation normsNeuropsychological examNeuropsychological StatusNeuropsychological functioningNormal intelligenceEpisodesSchizophrenia samplePsychosisSubjectsRiskStatusProdromeSchizophreniaImpairmentSeverity
2001
Estimated yield of early detection of prodromal or first episode patients by screening first degree relatives of schizophrenic patients
Woods S, Miller T, Davidson L, Hawkins K, Sernyak M, McGlashan T. Estimated yield of early detection of prodromal or first episode patients by screening first degree relatives of schizophrenic patients. Schizophrenia Research 2001, 52: 21-27. PMID: 11595388, DOI: 10.1016/s0920-9964(01)00158-x.Peer-Reviewed Original ResearchConceptsPopulation of relativesSchizophrenic patientsIntervention studiesNew casesEarly first episodeFirst-episode patientsChildren of patientsFirst-degree relativesEarly intervention studiesEpisode patientsLifetime riskProdromal patientsDegree relativesRisk groupsFirst episodeCurrent patientsPatientsRisk relativesSchizophrenic probandsEarly detectionSchizophrenia casesSchizophreniaAge distributionOnset distributionProbandsUse of the Medication Event Monitoring System to estimate medication compliance in patients with schizophrenia.
Diaz E, Levine HB, Sullivan MC, Sernyak MJ, Hawkins KA, Cramer JA, Woods SW. Use of the Medication Event Monitoring System to estimate medication compliance in patients with schizophrenia. Journal Of Psychiatry And Neuroscience 2001, 26: 325-9. PMID: 11590972, PMCID: PMC167186.Peer-Reviewed Original ResearchConceptsMedication Event Monitoring SystemEvent Monitoring SystemFirst monthMedication complianceSchizoaffective disorderCompliance rateTypical antipsychotic treatmentMean compliance ratePsychiatric inpatient hospitalHospital readmission dataElectronic monitoring devicesConsecutive patientsMedication regimensMonth 3Antipsychotic treatmentReadmission dataInpatient hospitalPatientsMEMS capsSchizophrenic disordersBottle openingHospitalSchizophreniaMonthsDisorders
1999
California Verbal Learning Test practice effects in a schizophrenia sample
Hawkins K, Wexler B. California Verbal Learning Test practice effects in a schizophrenia sample. Schizophrenia Research 1999, 39: 73-78. PMID: 10480669, DOI: 10.1016/s0920-9964(99)00015-8.Peer-Reviewed Original ResearchConceptsPractice effectsCalifornia Verbal Learning TestVerbal Learning TestTest practice effectsLearning TestWeek 10Sample of personsNew learningSchizophrenia sampleLater performancePrior exposureNon-pharmacological interventionsSerial performanceSample of patientsClinical circumstancesWeek 14Psychiatric statusLearningSchizophreniaCVLTExact natureMemoryConsiderable retentionLarge effectExposure
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 controlsMemoryLearningInstructionTrainingPerformanceMemory deficits in schizophrenia: inadequate assimilation or true amnesia? Findings from the Wechsler Memory Scale--revised.
Hawkins KA, Sullivan TE, Choi EJ. Memory deficits in schizophrenia: inadequate assimilation or true amnesia? Findings from the Wechsler Memory Scale--revised. Journal Of Psychiatry And Neuroscience 1997, 22: 169-79. PMID: 9183115, PMCID: PMC1188849.Peer-Reviewed Original ResearchConceptsMemory deficitsWechsler Memory Scale-RevisedMedial temporal lobe structuresTemporal lobe structuresSchizophrenia spectrum patientsHippocampal dysfunctionSchizophrenia patientsTrue amnesiaWechsler Memory ScalePatientsImpaired attentionLobe structuresWechsler Adult Intelligence Scale-RevisedPsychiatric controlsSchizophreniaDysfunctionMemory ScaleDeficitsMemory testFindings
1996
Working Memory, Attention, and Communication Disturbances in Schizophrenia
Docherty N, Hawkins K, Hoffman R, Quinlan D, Rakfeldt J, Sledge W. Working Memory, Attention, and Communication Disturbances in Schizophrenia. Journal Of Psychopathology And Clinical Science 1996, 105: 212-219. PMID: 8723002, DOI: 10.1037/0021-843x.105.2.212.Peer-Reviewed Original ResearchConceptsCommunication disturbancesConcept formationSpecific cognitive deficitsVerbal fluency testVerbal fluency test scoresWorking memoryCognitive correlatesFluency testCognitive deficitsNonpsychiatric individualsTest scoresPerformance ratingsMemoryReference performanceSchizophrenic patientsAttentionIndividualsScoresDeficitsCorrelatesSchizophreniaRatingsPerformanceImplicationsTest