2014
Correlates of polysomnographic sleep changes in cocaine dependence: Self-administration and clinical outcomes
Angarita GA, Canavan SV, Forselius E, Bessette A, Morgan PT. Correlates of polysomnographic sleep changes in cocaine dependence: Self-administration and clinical outcomes. Drug And Alcohol Dependence 2014, 143: 173-180. PMID: 25124303, PMCID: PMC4207081, DOI: 10.1016/j.drugalcdep.2014.07.025.Peer-Reviewed Original ResearchConceptsClinical outcomesWithdrawal symptomsNegative urineAmount of cocaineCocaine dependenceInpatient stayDays abstinentRapid eye movement (REM) sleepWeekly cognitive behavioral therapyCocaine self-administration studiesRandomized clinical trialsAbnormal sleep architectureEye movement sleepCocaine self-administration sessionsTotal sleep timeSlow-wave sleepChronic cocaine useSelf-administration sessionsSelf-administration studiesCognitive behavioral therapyRelevance of sleepPlacebo armSelf-reported useMovement sleepOutpatient treatment
2012
A single-day paradigm of self-regulated human cocaine administration
Matuskey D, Pittman B, Chen JI, Wanyiri J, Nadim H, Jatlow P, Gueorguieva R, Potenza MN, Morgan PT, Bhagwagar Z, Malison RT. A single-day paradigm of self-regulated human cocaine administration. Pharmacology Biochemistry And Behavior 2012, 103: 95-101. PMID: 22922558, PMCID: PMC3652339, DOI: 10.1016/j.pbb.2012.08.009.Peer-Reviewed Original Research
2010
A multistudy analysis of the effects of early cocaine abstinence on sleep
Matuskey D, Pittman B, Forselius E, Malison RT, Morgan PT. A multistudy analysis of the effects of early cocaine abstinence on sleep. Drug And Alcohol Dependence 2010, 115: 62-66. PMID: 21144676, PMCID: PMC3081928, DOI: 10.1016/j.drugalcdep.2010.10.015.Peer-Reviewed Original ResearchNormalizing Effects of Modafinil on Sleep in Chronic Cocaine Users
Morgan PT, Pace-Schott E, Pittman B, Stickgold R, Malison RT. Normalizing Effects of Modafinil on Sleep in Chronic Cocaine Users. American Journal Of Psychiatry 2010, 167: 331-340. PMID: 20080983, PMCID: PMC5857958, DOI: 10.1176/appi.ajp.2009.09050613.Peer-Reviewed Original ResearchMeSH KeywordsAdultBenzhydryl CompoundsCentral Nervous System StimulantsCocaineCocaine-Related DisordersDose-Response Relationship, DrugDouble-Blind MethodDrug Administration ScheduleHumansMaleMiddle AgedModafinilPolysomnographySleep Wake DisordersSubstance Abuse Treatment CentersSubstance Withdrawal SyndromeWakefulnessConceptsMultiple sleep latency testSlow-wave sleep timeSleep latency testEffects of modafinilTotal sleep timeSleep latencyCocaine-dependent participantsSleep timeChronic cocaine usersDaytime sleepinessLatency testCocaine usersShorter REM sleep latencyDaytime sleep latencyLonger total sleep timeREM sleep latencySubjective daytime sleepinessSleep architecture variablesPolysomnographic sleep recordingsSleep architectureNocturnal sleepHealthy comparison participantsAbstinent cocaine usersDay 1Day 2
2009
Regulation of cocaine self-administration in humans: Lack of evidence for loading and maintenance phases
Angarita GA, Pittman B, Gueorguieva R, Kalayasiri R, Lynch WJ, Sughondhabirom A, Morgan PT, Malison RT. Regulation of cocaine self-administration in humans: Lack of evidence for loading and maintenance phases. Pharmacology Biochemistry And Behavior 2009, 95: 51-55. PMID: 20005893, PMCID: PMC2824073, DOI: 10.1016/j.pbb.2009.12.005.Peer-Reviewed Original Research
2008
Sleep architecture, cocaine and visual learning
Morgan PT, Pace‐Schott E, Sahul ZH, Coric V, Stickgold R, Malison RT. Sleep architecture, cocaine and visual learning. Addiction 2008, 103: 1344-1352. PMID: 18855824, PMCID: PMC3690941, DOI: 10.1111/j.1360-0443.2008.02233.x.Peer-Reviewed Original ResearchConceptsChronic cocaine usersVisual learningProgressive abstinenceVisual texture discrimination taskLate night REM sleepSlow wave activityAbstinence-related changesTexture discrimination taskCocaine usersSleep architectureCocaine useVisual performanceREM sleepOvernight enhancementDays of abstinenceDiscrimination taskCocaine self-administration sessionsSelf-administration sessionsCognitive functionChronic cocaine useLearning deficitsCognitive dysfunctionRapid eye movement (REM) sleepAbstinenceCocaine abstinence
2007
Cocaine and Sleep: Early Abstinence
Morgan PT, Malison RT. Cocaine and Sleep: Early Abstinence. The Scientific World JOURNAL 2007, 7: 223-230. PMID: 17982597, PMCID: PMC5900952, DOI: 10.1100/tsw.2007.209.Peer-Reviewed Original ResearchMeSH KeywordsCocaineCocaine-Related DisordersHumansPolysomnographySleepSleep DeprivationTime FactorsConceptsSubjective reportsCognitive performance declineCompulsive cocaine useCocaine useDiminished sleepWeeks of abstinenceEarly abstinenceSubjective measuresPerformance declineSleep disturbancesAbstinenceSleepIndication of recoveryRelevant literatureDisordersMeasuresCocaineSignificant deteriorationChronic useRelationshipDysregulationAltered levels of sex and stress steroid hormones assessed daily over a 28-day cycle in early abstinent cocaine-dependent females
Fox HC, Hong KA, Paliwal P, Morgan PT, Sinha R. Altered levels of sex and stress steroid hormones assessed daily over a 28-day cycle in early abstinent cocaine-dependent females. Psychopharmacology 2007, 195: 527-536. PMID: 17891383, PMCID: PMC2746368, DOI: 10.1007/s00213-007-0936-3.Peer-Reviewed Original ResearchConceptsMenstrual cycleSex hormonesHealthy femalesEstradiol/progesterone ratioSteroid hormonesFirst monthChronic cocaine abuseSex steroid hormonesLevels of cortisolMood rating scalesStress steroid hormonesDrug-seeking behaviorProgesterone ratioHealthy controlsInpatient treatmentObjectivesThe current studyEvidence of alterationsBrain stressCocaine cravingCocaine abuseSalivary samplesCocaine abstinenceCocaine dependenceCocaine reinforcementCocaine patients
2006
A paradigm to investigate the regulation of cocaine self-administration in human cocaine users: a randomized trial
Lynch WJ, Sughondhabirom A, Pittman B, Gueorguieva R, Kalayasiri R, Joshua D, Morgan P, Coric V, Malison RT. A paradigm to investigate the regulation of cocaine self-administration in human cocaine users: a randomized trial. Psychopharmacology 2006, 185: 306-314. PMID: 16521032, DOI: 10.1007/s00213-006-0323-5.Peer-Reviewed Original ResearchConceptsTest-retest reliabilityCocaine administrationSelf-administered cocaine infusionsCocaine intakeTest-retest componentRegulation of cocaineTiming of infusionAbuse/dependenceDose-dependent fashionFixed ratio 1Non-treatment seeking volunteersDose-dependent wayCocaine abuse/dependenceCurrent studyHuman laboratory modelDrug-induced euphoriaCocaine-taking behaviorHuman cocaine usersCardiovascular responsesHuman laboratory paradigmCocaine infusionsConsecutive daysSubjective effectsPilot studyCocaine usersSelf-reported paranoia during laboratory “binge” cocaine self-administration in humans
Kalayasiri R, Sughondhabirom A, Gueorguieva R, Coric V, Lynch WJ, Morgan PT, Cubells JF, Malison RT. Self-reported paranoia during laboratory “binge” cocaine self-administration in humans. Pharmacology Biochemistry And Behavior 2006, 83: 249-256. PMID: 16549106, DOI: 10.1016/j.pbb.2006.02.005.Peer-Reviewed Original ResearchConceptsCocaine-induced paranoiaIntravenous cocaine self-administration sessionsPlacebo-controlled designCocaine self-administration sessionsCocaine-dependent volunteersSelf-administration sessionsTest-retest sessionsCocaine doseHigh dosesCocaine useSignificant main effectDoseDosesSelf-reported paranoiaSubjectsVulnerable subjects
2005
Sleep, sleep-dependent procedural learning and vigilance in chronic cocaine users: Evidence for occult insomnia
Morgan PT, Pace-Schott EF, Sahul ZH, Coric V, Stickgold R, Malison RT. Sleep, sleep-dependent procedural learning and vigilance in chronic cocaine users: Evidence for occult insomnia. Drug And Alcohol Dependence 2005, 82: 238-249. PMID: 16260094, DOI: 10.1016/j.drugalcdep.2005.09.014.Peer-Reviewed Original ResearchConceptsChronic cocaine usersSelf-report measuresProcedural learningSelf-reported sleepCocaine usersTotal sleep timeVigilance reaction timeSleep timeDays of abstinenceOccult insomniaElectrophysiological measuresCocaine self-administration sessionsSelf-administration sessionsImpaired vigilanceChronic insomniaSustained abstinenceSleep disturbancesAbstinenceReaction timeSlow wave activityLearningSleep latencyDays abstinenceSleepVigilance