2021
Regression dynamic causal modeling for resting‐state fMRI
Frässle S, Harrison SJ, Heinzle J, Clementz BA, Tamminga CA, Sweeney JA, Gershon ES, Keshavan MS, Pearlson GD, Powers A, Stephan KE. Regression dynamic causal modeling for resting‐state fMRI. Human Brain Mapping 2021, 42: 2159-2180. PMID: 33539625, PMCID: PMC8046067, DOI: 10.1002/hbm.25357.Peer-Reviewed Original Research
2020
Paracingulate Sulcus Length Is Shorter in Voice-Hearers Regardless of Need for Care
Powers AR, van Dyck LI, Garrison JR, Corlett PR. Paracingulate Sulcus Length Is Shorter in Voice-Hearers Regardless of Need for Care. Schizophrenia Bulletin 2020, 46: 1520-1523. PMID: 32432706, PMCID: PMC7707078, DOI: 10.1093/schbul/sbaa067.Peer-Reviewed Original ResearchMeSH KeywordsAdultHallucinationsHumansMagnetic Resonance ImagingPrefrontal CortexPsychotic DisordersConceptsAuditory verbal hallucinationsPsychotic disordersParacingulate sulcusT1-weighted structural MRI scansMedial prefrontal cortexStructural MRI scansClinical stateClinical careMRI scansAVH phenomenologyMental illnessClinical counterpartPrefrontal cortexClinical populationsDisordersVerbal hallucinationsHallucinationsIllnessPsychosisSulcus lengthCareGroups of participantsCurrent studyParticipantsNonclinical populations
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 ResearchMeSH KeywordsAdultDelusionsDose-Response Relationship, DrugFemaleFrontal LobeHallucinationsHumansKetamineMagnetic Resonance ImagingMalePerceptionPsychotic DisordersYoung AdultConceptsAuditory 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
2012
Neural Correlates of Multisensory Perceptual Learning
Powers AR, Hevey MA, Wallace MT. Neural Correlates of Multisensory Perceptual Learning. Journal Of Neuroscience 2012, 32: 6263-6274. PMID: 22553032, PMCID: PMC3366559, DOI: 10.1523/jneurosci.6138-11.2012.Peer-Reviewed Original ResearchMeSH KeywordsAdultAuditory PerceptionBrainCuesHumansLearningMagnetic Resonance ImagingMaleNerve NetPsychomotor PerformanceVisual PerceptionConceptsPosterior superior temporal sulcusNeural correlatesTraining paradigmMultisensory perceptual learningPerceptual training paradigmSuperior temporal sulcusSame environmental eventEffective connectivity analysisAudiovisual integrationPerceptual learningTemporal sulcusFMRI sessionsNeural substratesVisual stimuliBrain's abilitySame taskConnectivity analysisBOLD decreasesCessation of trainingVisual cortexEnvironmental eventsMultisensoryTemporal boundsTemporal windowTemporal structure