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
2014
Preliminary evidence for normalization of risk taking by modafinil in chronic cocaine users
Canavan SV, Forselius EL, Bessette AJ, Morgan PT. Preliminary evidence for normalization of risk taking by modafinil in chronic cocaine users. Addictive Behaviors 2014, 39: 1057-1061. PMID: 24642345, PMCID: PMC4026273, DOI: 10.1016/j.addbeh.2014.02.015.Peer-Reviewed Original ResearchConceptsBalloon Analogue Risk TaskBART scoresHealthy participantsCocaine-dependent individualsCocaine dependenceChronic cocaine usersEffects of modafinilCognitive effectsRisk TaskBehavioral measuresChronic cocaine useDependent individualsWake-promoting agentNormalization of riskRisk takingSubstance useCognitive impairmentPreliminary evidenceCocaine usersHigher scoresModafinilParticipantsCocaine useSleep disordersModafinil treatment