2016
Neural Correlates of Success and Failure Signals During Neurofeedback Learning
Radua J, Stoica T, Scheinost D, Pittenger C, Hampson M. Neural Correlates of Success and Failure Signals During Neurofeedback Learning. Neuroscience 2016, 378: 11-21. PMID: 27063101, PMCID: PMC5537049, DOI: 10.1016/j.neuroscience.2016.04.003.Peer-Reviewed Original ResearchConceptsNeurofeedback signalFeedback learningMedial prefrontal/anterior cingulate cortexFeedback-driven learningPrecuneus/posterior cingulateClear adaptive valueDefault mode networkLevel-dependent responsesAnterior cingulate cortexOperant conditioning paradigmReduction of anxietyNeurofeedback learningNeural correlatesSignals of failureNeural processesNeurofeedback interventionConditioning paradigmNeurofeedback experimentsMode networkOrbitofrontal cortexCingulate cortexPosterior cingulateFunctional runsAbstract representationLearning
2013
A Graphics Processing Unit Accelerated Motion Correction Algorithm and Modular System for Real-time fMRI
Scheinost D, Hampson M, Qiu M, Bhawnani J, Constable RT, Papademetris X. A Graphics Processing Unit Accelerated Motion Correction Algorithm and Modular System for Real-time fMRI. Neuroinformatics 2013, 11: 291-300. PMID: 23319241, PMCID: PMC3644525, DOI: 10.1007/s12021-013-9176-3.Peer-Reviewed Case Reports and Technical NotesConceptsGraphics processing unitsNovel graphics processing unitMotion correction algorithmProcessing unitReal-time methodProcessing delayCorrection algorithmSystem designMotion correction strategiesOffline methodsAlgorithmAvailable softwareReal-time functional magnetic resonance imagingModular approachValuable featuresModular systemPresent algorithmReal-time fMRIMotion correctionMotion parametersSoftwareNew technologiesNew systemCorrection strategyEstimates of motion
2011
Time course of regional brain activity accompanying auditory verbal hallucinations in schizophrenia
Hoffman RE, Pittman B, Constable RT, Bhagwagar Z, Hampson M. Time course of regional brain activity accompanying auditory verbal hallucinations in schizophrenia. The British Journal Of Psychiatry 2011, 198: 277-283. PMID: 21972276, PMCID: PMC3065772, DOI: 10.1192/bjp.bp.110.086835.Peer-Reviewed Original ResearchConceptsInferior frontal gyrusAuditory verbal hallucinationsFrontal gyrusVerbal hallucinationsRegional brain activityTemporal regionsHallucination eventsBrain activityRight inferior frontal gyrusFunctional magnetic resonance imagingRight temporal activityRight posterior temporal regionPosterior temporal regionsEffects of motorNon-hallucinating patientsRight temporal regionHallucinations groupLeft temporal regionMagnetic resonance imagingTime courseCorollary dischargeGyrusVerbal imagesRegional activitySchizoaffective disorder
2010
Functional connectivity between ventral prefrontal cortex and amygdala at low frequency in the resting state in bipolar disorder
Chepenik LG, Raffo M, Hampson M, Lacadie C, Wang F, Jones MM, Pittman B, Skudlarski P, Blumberg HP. Functional connectivity between ventral prefrontal cortex and amygdala at low frequency in the resting state in bipolar disorder. Psychiatry Research 2010, 182: 207-210. PMID: 20493671, PMCID: PMC2914819, DOI: 10.1016/j.pscychresns.2010.04.002.Peer-Reviewed Original ResearchConceptsVentral prefrontal cortexBipolar disorderFunctional connectivityPrefrontal cortexState functional magnetic resonance imagingRight ventral prefrontal cortexFunctional magnetic resonance imagingMagnetic resonance imagingWhole-brain analysisTrait abnormalityResonance imagingVentral striatumHealthy participantsAmygdalaCortexDisordersNegative correlationLow frequencyDysfunctionStriatumAbnormalities