2020
S197. PAVLOVIAN CONDITIONED HALLUCINATIONS TASKS AND PSYCHOMETRIC THRESHOLDING IN ENRICHED ONLINE SAMPLE
Kafadar E, Lim C, Powers A. S197. PAVLOVIAN CONDITIONED HALLUCINATIONS TASKS AND PSYCHOMETRIC THRESHOLDING IN ENRICHED ONLINE SAMPLE. Schizophrenia Bulletin 2020, 46: s113-s114. PMCID: PMC7234405, DOI: 10.1093/schbul/sbaa031.263.Peer-Reviewed Original ResearchAuditory verbal hallucinationsEmergence of hallucinationsAuditory stimuliNeural signaturesVisual stimuliUnusual experiencesOnline sampleIncoming sensory evidencePavlovian conditioning taskPredictive coding frameworkSalient auditory stimuliPrior beliefsPerceptual inferenceSensory evidencePerceptual experienceConditioning taskBrain processesTask methodologyResponses of participantsSensory modalitiesVerbal hallucinationsPotential therapeutic targetTask consistHallucinatory experiencesDiagnosis of psychosis
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 ResearchConceptsPosterior 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
2010
Binding of sights and sounds: Age-related changes in multisensory temporal processing
Hillock AR, Powers AR, Wallace MT. Binding of sights and sounds: Age-related changes in multisensory temporal processing. Neuropsychologia 2010, 49: 461-467. PMID: 21134385, PMCID: PMC3140703, DOI: 10.1016/j.neuropsychologia.2010.11.041.Peer-Reviewed Original ResearchConceptsMultisensory temporal processingTemporal processingLong stimulus onset asynchroniesAudiovisual temporal perceptionMultisensory temporal functionAudiovisual temporal asynchronyStimulus onset asynchronyRelatedness of stimuliAge-related differencesSignificant group differencesMultisensory processesMultisensory stimuliMultisensory worldTemporal perceptionOnset asynchronyAuditory cuesAuditory stimuliVisual stimuliTemporal asynchronyAge-related changesGroup differencesExternal eventsStimuliTemporal functionAsynchrony
2009
Perceptual Training Narrows the Temporal Window of Multisensory Binding
Powers AR, Hillock AR, Wallace MT. Perceptual Training Narrows the Temporal Window of Multisensory Binding. Journal Of Neuroscience 2009, 29: 12265-12274. PMID: 19793985, PMCID: PMC2771316, DOI: 10.1523/jneurosci.3501-09.2009.Peer-Reviewed Original ResearchConceptsPerceptual trainingAudiovisual simultaneity judgment taskMultisensory temporal functionMultisensory temporal processingSimultaneity judgment taskPerceptual learning paradigmTemporal windowSame environmental eventAudiovisual simultaneityMultisensory bindingAudiovisual integrationAudiovisual pairsCognitive biasesJudgment taskTemporal processingVisual stimuliBrain's abilityTwo-alternativeLearning paradigmChoice paradigmTwo-intervalTemporal functionEnvironmental eventsTemporal boundsSecond experiment