2024
A Neural Decision Signal during Internal Sampling from Working Memory in Humans
van Ede F, Nobre A. A Neural Decision Signal during Internal Sampling from Working Memory in Humans. Journal Of Neuroscience 2024, 44: e1475232024. PMID: 38538144, PMCID: PMC11079964, DOI: 10.1523/jneurosci.1475-23.2024.Peer-Reviewed Original ResearchConceptsWorking memoryDomains of working memoryMemory-guided behaviorEvolving decision processesInternal visual representationsNeural evidenceParietal positivitySensory evidenceMental contentMemory contentPurposeful behaviorDecision signalsTime participantsMemorySensory informationInternational sampleMultiple contentsDecision processVisual representationPsychologyDecision-making frameworkNeuroscienceEvidenceBehaviorParticipants
2023
Neural mechanisms to incorporate visual counterevidence in self-movement estimation
Tanaka R, Zhou B, Agrochao M, Badwan B, Au B, Matos N, Clark D. Neural mechanisms to incorporate visual counterevidence in self-movement estimation. Current Biology 2023, 33: 4960-4979.e7. PMID: 37918398, PMCID: PMC10848174, DOI: 10.1016/j.cub.2023.10.011.Peer-Reviewed Original ResearchEvidence for Reduced Sensory Precision and Increased Reliance on Priors in Hallucination-Prone Individuals in a General Population Sample
Benrimoh D, Fisher V, Seabury R, Sibarium E, Mourgues C, Chen D, Powers A. Evidence for Reduced Sensory Precision and Increased Reliance on Priors in Hallucination-Prone Individuals in a General Population Sample. Schizophrenia Bulletin 2023, 50: 349-362. PMID: 37830405, PMCID: PMC10919780, DOI: 10.1093/schbul/sbad136.Peer-Reviewed Original ResearchSensory evidenceSensory precisionHallucinatory experiencesHallucination severityCH rateHallucination-prone individualsIncoming sensory evidencePrior weightingLinguistic versionsGaussian filter modelNonlinguistic stimuliPerceptual inferencePerceptual statesPerceptual beliefsResponse confidenceAuditory informationTask behaviorGeneral population sampleOnline sampleAuditory hallucinationsGeneral population participantsStimuliPast resultsParticipantsTaskEvidence Accumulation Rate Moderates the Relationship between Enriched Environment Exposure and Age-Related Response Speed Declines
Brosnan M, Pearce D, O’Neill M, Loughnane G, Fleming B, Zhou S, Chong T, Nobre A, Connell R, Bellgrove M. Evidence Accumulation Rate Moderates the Relationship between Enriched Environment Exposure and Age-Related Response Speed Declines. Journal Of Neuroscience 2023, 43: 6401-6414. PMID: 37507230, PMCID: PMC10500991, DOI: 10.1523/jneurosci.2260-21.2023.Peer-Reviewed Original ResearchConceptsCognitive functionBrain healthOlder adultsNeural metricsTrajectories of cognitive agingMarkers of brain healthLevel of cognitive functioningEnriched environmentEvidence accumulation ratesPreservation of cognitive functionGlobal cognitive functionInfluence of EENeurocognitive vulnerabilityCognitive agingCognitive reserveMotor processesSensory evidenceBrain activityNeurocognitive healthEvidence accumulationResponse speedBrain agingAging BrainSocial stimulationSpeed declineAssociative memory retrieval modulates upcoming perceptual decisions
Bornstein A, Aly M, Feng S, Turk-Browne N, Norman K, Cohen J. Associative memory retrieval modulates upcoming perceptual decisions. Cognitive, Affective, & Behavioral Neuroscience 2023, 23: 645-665. PMID: 37316611, DOI: 10.3758/s13415-023-01092-6.Peer-Reviewed Original ResearchConceptsPerceptual decisionsSensory evidencePerceptual decision taskAssociative memory retrievalStimulus-stimulus pairingFormal model comparisonMemory reinstatementSensory inferenceMemory retrievalDecision taskSensory informationMemoryParticipants' responsesAccurate decisionsPattern analysisSpecific contentParticipantsRelative reliabilityExpectationsModel comparisonDynamic inferenceCuesReinstatementTaskImage streamA novel computational approach to pain perception modelling within a Bayesian framework using quantitative sensory testing
Drusko A, Baumeister D, McPhee Christensen M, Kold S, Fisher V, Treede R, Powers A, Graven-Nielsen T, Tesarz J. A novel computational approach to pain perception modelling within a Bayesian framework using quantitative sensory testing. Scientific Reports 2023, 13: 3196. PMID: 36823292, PMCID: PMC9950064, DOI: 10.1038/s41598-023-29758-8.Peer-Reviewed Original ResearchConceptsHierarchical Gaussian FilterPrior expectationsRelevant individual differencesPain perceptionLearning-based interventionsTesting paradigmCognitive processesSensory evidenceIndividual differencesPsychophysical paradigmInferential processesVisual cuesElectrical cutaneous stimulusPrior weightingPerceptionPain stimuliPrior beliefsIndividual levelNociceptive inputBeliefsGreater relianceStimuliStrong weightingAcute pain stimuliParadigm
2022
Conditioned Hallucinations and Prior Overweighting Are State-Sensitive Markers of Hallucination Susceptibility
Kafadar E, Fisher VL, Quagan B, Hammer A, Jaeger H, Mourgues C, Thomas R, Chen L, Imtiaz A, Sibarium E, Negreira AM, Sarisik E, Polisetty V, Benrimoh D, Sheldon AD, Lim C, Mathys C, Powers AR. Conditioned Hallucinations and Prior Overweighting Are State-Sensitive Markers of Hallucination Susceptibility. Biological Psychiatry 2022, 92: 772-780. PMID: 35843743, PMCID: PMC10575690, DOI: 10.1016/j.biopsych.2022.05.007.Peer-Reviewed Original ResearchConceptsCH rateIncoming sensory evidenceSensory evidencePerceptual statesTask performanceComputational psychiatrySubset of participantsPrior expectationsHallucination severityBehavioral dataSymptom severityPast experienceStable measureHallucinationsPsychotic symptomsHallucination frequencyTaskSymptom expressionBayesian modelState markerHallucinatorsNonhallucinatorsOverweightingPerceptionSymptom riskTransient neuronal suppression for exploitation of new sensory evidence
Shinn M, Lee D, Murray JD, Seo H. Transient neuronal suppression for exploitation of new sensory evidence. Nature Communications 2022, 13: 23. PMID: 35013222, PMCID: PMC8748884, DOI: 10.1038/s41467-021-27697-4.Peer-Reviewed Original ResearchConceptsSensory evidenceNeural activityNew sensory evidenceGeneralized drift-diffusion modelsBehavioral responsesFrontal eye fieldConsistency of behaviorMultiple brain areasPerceptual decisionsEvidence accumulationStimulus onsetAnimal's behavioral responseMotor preparationDrift-diffusion modelEye fieldMomentary arrestTemporal integrationBehavioral studiesBrain areasCorresponding dipMotor outputBrief suppressionNeuronal suppressionVariable delayStimulus strength
2020
Confluence of Timing and Reward Biases in Perceptual Decision-Making Dynamics
Shinn M, Ehrlich D, Lee D, Murray JD, Seo H. Confluence of Timing and Reward Biases in Perceptual Decision-Making Dynamics. Journal Of Neuroscience 2020, 40: 7326-7342. PMID: 32839233, PMCID: PMC7534922, DOI: 10.1523/jneurosci.0544-20.2020.Peer-Reviewed Original ResearchConceptsDecision-making taskReward biasesDecision-making strategiesPerceptual decision-making taskNovel decision-making taskGeneralized drift-diffusion modelsResponse time patternsTiming mechanismTemporal structureCognitive mechanismsSensory evidenceDecision-making dynamicsUrgency signalAsymmetric rewardsNeural mechanismsStimulus timingDrift-diffusion modelTemporal contextLeaky integrationRewardReward structureTemporal uncertaintyEvidence reliabilityEveryday lifeSuch regularitiesModeling perception and behavior in individuals at clinical high risk for psychosis: Support for the predictive processing framework
Kafadar E, Mittal VA, Strauss GP, Chapman HC, Ellman LM, Bansal S, Gold JM, Alderson-Day B, Evans S, Moffatt J, Silverstein SM, Walker EF, Woods SW, Corlett PR, Powers AR. Modeling perception and behavior in individuals at clinical high risk for psychosis: Support for the predictive processing framework. Schizophrenia Research 2020, 226: 167-175. PMID: 32593735, PMCID: PMC7774587, DOI: 10.1016/j.schres.2020.04.017.Peer-Reviewed Original ResearchConceptsClinical high riskCHR participantsDegraded speech stimuliPredictive processing frameworkUtility of interventionsSample of participantsPerceptual inferenceSensory evidencePsychotic spectrum disordersSpeech stimuliSpeech taskComputational underpinningsBehavioral tasksEfficacy of interventionsSpectrum disorderTarget tonesParticipants' performanceComputational modelingHigh riskPoor recognitionLatent factorsSuch tasksPrior beliefsTaskAppropriate risk stratificationS197. 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
2016
When past is present: Substitutions of long-term memory for sensory evidence in perceptual judgments
Fan JE, Hutchinson JB, Turk-Browne NB. When past is present: Substitutions of long-term memory for sensory evidence in perceptual judgments. Journal Of Vision 2016, 16: 1-1. PMID: 27248565, PMCID: PMC4898202, DOI: 10.1167/16.8.1.Peer-Reviewed Original Research
2015
Testing sensory evidence against mnemonic templates
Myers N, Rohenkohl G, Wyart V, Woolrich M, Nobre A, Stokes M. Testing sensory evidence against mnemonic templates. ELife 2015, 4: e09000. PMID: 26653854, PMCID: PMC4755744, DOI: 10.7554/elife.09000.Peer-Reviewed Original ResearchConceptsVisual target detection taskTarget detection taskStimulus encodingTemplate codeNeural modelTemplate representationPerceptual decisionsSensory evidenceNeural representationTemplate informationStimulus onsetCross-generationTransform inputsPre-activationStimuliDecision stageRepresentationInternal templatePattern analysisClassic studyCurrent inputComplex trajectoriesInputEncodingProposal
2012
Temporal Expectation Improves the Quality of Sensory Information
Rohenkohl G, Cravo A, Wyart V, Nobre A. Temporal Expectation Improves the Quality of Sensory Information. Journal Of Neuroscience 2012, 32: 8424-8428. PMID: 22699922, PMCID: PMC4235252, DOI: 10.1523/jneurosci.0804-12.2012.Peer-Reviewed Original ResearchConceptsTemporal expectationsQuality of sensory informationVisual targetModulate visual perceptionSensory informationVisual perceptionRhythmic temporal expectationRelevant sensory informationAction preparationPerceptual processingSensory evidenceAttentional focusOptimal information processingPsychophysical paradigmInformation processingOrientation discriminationPsychometric functionsVisual gratingsTemporal regularityReaction timeExternal eventsIrregular conditionsTemporal structureContrast sensitivitySignal strength
2009
Lateral Intraparietal Cortex and Reinforcement Learning during a Mixed-Strategy Game
Seo H, Barraclough DJ, Lee D. Lateral Intraparietal Cortex and Reinforcement Learning during a Mixed-Strategy Game. Journal Of Neuroscience 2009, 29: 7278-7289. PMID: 19494150, PMCID: PMC2743508, DOI: 10.1523/jneurosci.1479-09.2009.Peer-Reviewed Original Research
2006
Predictive Codes for Forthcoming Perception in the Frontal Cortex
Summerfield C, Egner T, Greene M, Koechlin E, Mangels J, Hirsch J. Predictive Codes for Forthcoming Perception in the Frontal Cortex. Science 2006, 314: 1311-1314. PMID: 17124325, DOI: 10.1126/science.1132028.Peer-Reviewed Original ResearchConceptsFrontal cortexIncoming sensory informationMedial frontal cortexPresence of facesPerceptual ambiguityPerceptual decisionsSensory evidenceNeural representationVisual objectsSensory environmentVisual areasPredictive codingSensory informationPredictive codePerceptionCortexFaceHuman subjectsBrainObserved evidenceDecisionsAmbiguityRepresentationEvidenceObjects
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