2023
Effects of exercise intervention on psychotic symptoms: A meta-analysis and hypothetical model of neurobiological mechanisms
Oliva H, Monteiro-Junior R, Oliva I, Powers A. Effects of exercise intervention on psychotic symptoms: A meta-analysis and hypothetical model of neurobiological mechanisms. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2023, 125: 110771. PMID: 37075881, DOI: 10.1016/j.pnpbp.2023.110771.Peer-Reviewed Original ResearchConceptsExercise interventionGeneral symptomsPsychotic symptomsEfficacy of exerciseEffects of exerciseSpecific brain areasWeb of ScienceCochrane CENTRALSymptom improvementTemporal lobeBrain areasLarge effect sizesPsychotic patientsPositive symptomsNegative symptomsSymptomsNeurobiological mechanismsNeurophysiology studiesInterventionExerciseEffect sizeDatabase searchSignificant improvementNeurobiological modelsPatients
2019
Duration of the psychosis prodrome
Powers AR, Addington J, Perkins DO, Bearden CE, Cadenhead KS, Cannon TD, Cornblatt BA, Mathalon DH, Seidman LJ, Tsuang MT, Walker EF, McGlashan TH, Woods SW. Duration of the psychosis prodrome. Schizophrenia Research 2019, 216: 443-449. PMID: 31806523, PMCID: PMC7539292, DOI: 10.1016/j.schres.2019.10.051.Peer-Reviewed Original ResearchConceptsSyndrome onsetPsychosis prodromeNorth American Prodrome Longitudinal StudyCHR-P patientsClinical high-risk syndromeHigh-risk syndromePsychosis risk syndromeMedication exposureProdromal periodFrank psychosisRisk syndromeProdromePsychosisLongitudinal studySyndromeOnsetStructured interviewsDurationFirst descriptionThirdYearsFinal thirdPatientsMonths
2017
Lack of Diagnostic Pluripotentiality in Patients at Clinical High Risk for Psychosis: Specificity of Comorbidity Persistence and Search for Pluripotential Subgroups
Woods SW, Powers AR, Taylor JH, Davidson CA, Johannesen JK, Addington J, Perkins DO, Bearden CE, Cadenhead KS, Cannon TD, Cornblatt BA, Seidman LJ, Tsuang MT, Walker EF, McGlashan TH. Lack of Diagnostic Pluripotentiality in Patients at Clinical High Risk for Psychosis: Specificity of Comorbidity Persistence and Search for Pluripotential Subgroups. Schizophrenia Bulletin 2017, 44: 254-263. PMID: 29036402, PMCID: PMC5814797, DOI: 10.1093/schbul/sbx138.Peer-Reviewed Original ResearchConceptsCHR syndromeDiagnostic outcomesCHR subgroupsClinical high-risk syndromeHigh-risk syndromeOnset of psychosisClinical high riskPersistence of anxietyEmergent psychosisCHR patientsRisk syndromeObservational studyCHR casesHigh riskNonpsychotic disordersComorbid disordersComparison subjectsBipolar disorderDiagnostic InterviewSyndromeDSM-IVPatientsPsychosisDiagnostic specificityComparison group
2016
Varieties of Voice-Hearing: Psychics and the Psychosis Continuum
Powers AR, Kelley MS, Corlett PR. Varieties of Voice-Hearing: Psychics and the Psychosis Continuum. Schizophrenia Bulletin 2016, 43: 84-98. PMID: 28053132, PMCID: PMC5216860, DOI: 10.1093/schbul/sbw133.Peer-Reviewed Original ResearchConceptsPsychotic disordersSerious mental illnessVoice-hearing experiencesControl subjectsStudy populationProminent symptomContinuum of psychosisTreatment of voiceMental illnessProtective factorsPatientsNew study populationPsychosis continuumHelp-seeking groupDisordersHallucinatory experiencesVoice hearingSubjectsAuditory messagesVoice hearersPopulationSymptomsIllnessPsychosisDisease