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 ResearchConceptsCognitive 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
2016
Intrinsic and Extrinsic Motivation and Learning in Schizophrenia
Kremen L, Fiszdon J, Kurtz M, Silverstein S, Choi J. Intrinsic and Extrinsic Motivation and Learning in Schizophrenia. Current Behavioral Neuroscience Reports 2016, 3: 144-153. DOI: 10.1007/s40473-016-0078-1.Peer-Reviewed Original ResearchIntrinsic motivationExtrinsic motivationGoal-directed behaviorTypes of motivationRole of effortImportance of rewardMotivation impairmentsPsychological needsExternal rewardsMotivation researchBehavioral correlatesBehavioral interventionsNegative symptomsMotivationPsychiatric recoveryRewardNew interventionsSchizophreniaAmotivationInterventionAnhedoniaDeficitsCorrelatesImpairmentBehavior
2015
Ketamine-Induced Hallucinations
Powers A, Gancsos MG, Finn ES, Morgan PT, Corlett PR. Ketamine-Induced Hallucinations. Psychopathology 2015, 48: 376-385. PMID: 26361209, PMCID: PMC4684980, DOI: 10.1159/000438675.Peer-Reviewed Original ResearchConceptsAuditory verbal hallucinationsPerceptual inputVerbal hallucinationsPredictive coding modelDelusion-like ideasPerceptual disruptionsPerceptual expectationsPerceptual environmentCoding modelPhenomenological experienceSensory stimuliStimulation environmentAuditory hallucinationsHealthy participantsHallmark symptomFirst-episode psychosisMusical hallucinationsMRI scannerHallucinationsParticipantsMagnetic resonance imaging (MRI) scannerPsychosisAmotivationPerceptVivid hallucinations
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