2020
Cognitive Effort and Amotivation in First-Episode Psychosis
Fortgang RG, Srihari V, Cannon TD. Cognitive Effort and Amotivation in First-Episode Psychosis. Journal Of Psychopathology And Clinical Science 2020, 129: 422-431. PMID: 32162929, DOI: 10.1037/abn0000509.Peer-Reviewed Original ResearchMeSH KeywordsAdultCognitionFemaleHumansMaleMotivationNeuropsychological TestsPsychotic DisordersYoung AdultConceptsCognitive effortFirst-episode psychosisCognitive test performanceObserved cognitive deficitsAdditional monetary incentivesCognitive remediationCognitive tasksCognitive performanceDifficult trialsNovel taskCognitive deficitsAmotivationImpaired cognitionTest performanceCore featuresDisengagementLower overall accuracyHealthy community membersMonetary incentivesCurrent studyEpisode psychosisFEP patientsPsychotic disordersReduced effortTask
2018
Auditory and Visual Oddball Stimulus Processing Deficits in Schizophrenia and the Psychosis Risk Syndrome: Forecasting Psychosis Risk With P300
Hamilton HK, Woods SW, Roach BJ, Llerena K, McGlashan TH, Srihari VH, Ford JM, Mathalon DH. Auditory and Visual Oddball Stimulus Processing Deficits in Schizophrenia and the Psychosis Risk Syndrome: Forecasting Psychosis Risk With P300. Schizophrenia Bulletin 2018, 45: 1068-1080. PMID: 30753731, PMCID: PMC6737543, DOI: 10.1093/schbul/sby167.Peer-Reviewed Original ResearchConceptsPsychosis risk syndromeTarget P3bProcessing deficitsPsychosis onsetEvent-related potential componentP300 event-related potential componentTarget P3b amplitudesPsychosis riskInfrequent target stimuliVisual oddball taskPRS participantsHealthy control participantsP3b amplitudeVisual modalityTarget stimuliP3a amplitudeSchizophrenia participantsOddball taskNovel stimuliP300 amplitudeHC participantsRisk syndromeP3bVulnerability markerControl participants
2014
The impact of eszopiclone on sleep and cognition in patients with schizophrenia and insomnia: A double-blind, randomized, placebo-controlled trial
Tek C, Palmese LB, Krystal AD, Srihari VH, DeGeorge PC, Reutenauer EL, Guloksuz S. The impact of eszopiclone on sleep and cognition in patients with schizophrenia and insomnia: A double-blind, randomized, placebo-controlled trial. Schizophrenia Research 2014, 160: 180-185. PMID: 25454802, PMCID: PMC5589464, DOI: 10.1016/j.schres.2014.10.002.Peer-Reviewed Original ResearchMeSH KeywordsAzabicyclo CompoundsCognitionDouble-Blind MethodEszopicloneFemaleHumansHypnotics and SedativesMaleMedical RecordsMiddle AgedPatient DropoutsPiperazinesPsychotic DisordersQuality of LifeSchizophreniaSchizophrenic PsychologySingle-Blind MethodSleepSleep Initiation and Maintenance DisordersTreatment OutcomeConceptsInsomnia Severity IndexSingle-blind placebo phasePlacebo phaseOutcome measuresPsychiatric symptomsPlacebo-controlled trialDouble-blind placeboSecondary outcome measuresPrimary outcome measureEffects of eszopicloneBetween-group differencesTreatment of insomniaQuality of lifeDiscontinuation ratesMATRICS Consensus Cognitive BatteryStable outpatientsConsensus Cognitive BatterySchizoaffective disorderCognitive impairmentSleep diaryPatientsInsomniaScore changeEszopiclonePlacebo
2012
Error Monitoring Dysfunction Across the Illness Course of Schizophrenia
Perez VB, Ford JM, Roach BJ, Woods SW, McGlashan TH, Srihari VH, Loewy RL, Vinogradov S, Mathalon DH. Error Monitoring Dysfunction Across the Illness Course of Schizophrenia. Journal Of Psychopathology And Clinical Science 2012, 121: 372-387. PMID: 22060947, PMCID: PMC3358508, DOI: 10.1037/a0025487.Peer-Reviewed Original ResearchConceptsEarly illness schizophrenia patientsClinical high-risk patientsSchizophrenia patientsIllness courseAge-matched healthy controlsHigh-risk patientsAge-matched HCChronic schizophrenia patientsOnset of psychosisCorrect response negativityPE abnormalitiesRisk patientsCHR patientsClinical prodromeEvent-related potentialsIllness durationHealthy controlsIllness progressionPsychosis onsetPatientsAbnormalitiesIllnessResponse monitoringError-related negativityOnset