2007
Disrupted prediction-error signal in psychosis: evidence for an associative account of delusions
Corlett PR, Murray GK, Honey GD, Aitken MR, Shanks DR, Robbins TW, Bullmore ET, Dickinson A, Fletcher PC. Disrupted prediction-error signal in psychosis: evidence for an associative account of delusions. Brain 2007, 130: 2387-2400. PMID: 17690132, PMCID: PMC3838942, DOI: 10.1093/brain/awm173.Peer-Reviewed Original ResearchConceptsDelusion formationDelusional beliefsPrediction error processingPrediction-error signallingPrediction error signalsAttentional allocationAssociative accountMaladaptive beliefsError processingAssociative learningNeurobiological theoriesBrain responsesCortex responsesIndividual's propensityBelief formationDelusionsBeliefsPrediction errorExtent of disruptionProcessingFMRILearningPsychosisExpectancyIndividuals
2005
Functional dysconnectivity in schizophrenia associated with attentional modulation of motor function
Honey G, Pomarol-Clotet E, Corlett P, Honey R, Mckenna P, Bullmore E, Fletcher P. Functional dysconnectivity in schizophrenia associated with attentional modulation of motor function. Brain 2005, 128: 2597-2611. PMID: 16183659, PMCID: PMC3838931, DOI: 10.1093/brain/awh632.Peer-Reviewed Original ResearchConceptsCognitive dysmetria hypothesisPatient groupAnterior cingulateFunctional MRIContinuous performance taskFunctional dysconnectivitySchizophrenia patientsPositive symptomsNegative symptomsMedial superior frontal gyrusThalamo-cortical circuitsDistinct symptom profilesSupplementary motor areaCases of schizophreniaSuperior frontal gyrusFunctional imaging studiesTask-related connectivityGroups of subjectsIllness onsetControl subjectsFunctional deficitsMotor functionHealthy volunteersMotor areaFundamental abnormalityTime-limited modulation of appetitive Pavlovian memory by D1 and NMDA receptors in the nucleus accumbens
Dalley J, Lääne K, Theobald D, Armstrong H, Corlett P, Chudasama Y, Robbins T. Time-limited modulation of appetitive Pavlovian memory by D1 and NMDA receptors in the nucleus accumbens. Proceedings Of The National Academy Of Sciences Of The United States Of America 2005, 102: 6189-6194. PMID: 15833811, PMCID: PMC556132, DOI: 10.1073/pnas.0502080102.Peer-Reviewed Original ResearchConceptsAppetitive Pavlovian learningEarly memory consolidationNMDA receptor antagonistNucleus accumbensPavlovian memoryPavlovian learningAppetitive learningAssociative processesMemory consolidationApproach behaviorInstrumental learningPavlovian conditioningAppetitive memoryFood rewardReceptor antagonistConditioning sessionsNMDA receptorsSpatial learningInstrumental processesGlutamatergic influencesEarly consolidationD2 receptor antagonist sulpirideReceptor antagonist sulpirideIntra-NAc infusionsLearning
2004
Prediction Error during Retrospective Revaluation of Causal Associations in HumansfMRI Evidence in Favor of an Associative Model of Learning
CORLETT P, AITKEN M, DICKINSON A, SHANKS D, HONEY G, HONEY R, ROBBINS T, BULLMORE E, FLETCHER P. Prediction Error during Retrospective Revaluation of Causal Associations in HumansfMRI Evidence in Favor of an Associative Model of Learning. Neuron 2004, 44: 877-888. DOI: 10.1016/s0896-6273(04)00756-1.Peer-Reviewed Original ResearchPrediction Error during Retrospective Revaluation of Causal Associations in Humans fMRI Evidence in Favor of an Associative Model of Learning
Corlett P, Aitken M, Dickinson A, Shanks D, Honey G, Honey R, Robbins T, Bullmore E, Fletcher P. Prediction Error during Retrospective Revaluation of Causal Associations in Humans fMRI Evidence in Favor of an Associative Model of Learning. Neuron 2004, 44: 877-888. PMID: 15572117, DOI: 10.1016/j.neuron.2004.11.022.Peer-Reviewed Original ResearchConceptsRetrospective revaluationPrefrontal cortexAssociative accountRight lateral PFC activationRight lateral prefrontal cortexLate brain responsesAssociative learning theoryLateral PFC activationLateral prefrontal cortexRight prefrontal cortexVentral striatal activationPrediction errorAssociative theoryPFC activationBrain responsesFunctional neuroimagingStriatal activationAssociative modelPC theoryAssociative viewLearning phenomenonLearning theoryContrast theoryLearningCues