2015
Meditation leads to reduced default mode network activity beyond an active task
Garrison KA, Zeffiro TA, Scheinost D, Constable RT, Brewer JA. Meditation leads to reduced default mode network activity beyond an active task. Cognitive, Affective, & Behavioral Neuroscience 2015, 15: 712-720. PMID: 25904238, PMCID: PMC4529365, DOI: 10.3758/s13415-015-0358-3.Peer-Reviewed Original ResearchConceptsDefault mode networkDefault mode network activityBrain activation patternsDefault mode processingActive cognitive taskMode networkCognitive tasksActive tasksActivation patternsSelf-related thinkingDefault-mode activityPosterior cingulate/precuneusLong-term meditationAnterior cingulate cortexPrevious imaging studiesEffortful taskCentral neural processesNeural processesTask interactionBrain networksCingulate cortexNetwork activityMeditationReduced activation
2013
Real-time fMRI links subjective experience with brain activity during focused attention
Garrison KA, Scheinost D, Worhunsky PD, Elwafi HM, Thornhill TA, Thompson E, Saron C, Desbordes G, Kober H, Hampson M, Gray JR, Constable RT, Papademetris X, Brewer JA. Real-time fMRI links subjective experience with brain activity during focused attention. NeuroImage 2013, 81: 110-118. PMID: 23684866, PMCID: PMC3729617, DOI: 10.1016/j.neuroimage.2013.05.030.Peer-Reviewed Original ResearchConceptsReal-time fMRIPosterior cingulate cortexBrain activitySubjective experienceFocused attentionCingulate cortexCognitive neuroscience researchFocused attention taskOngoing subjective experienceFeedback graphsOwn brain activityDefault mode networkAttention taskNeural processesIntrospective awarenessOngoing taskRt-fMRIAffective functionsExperienced meditatorsMode networkNovel contextNeuroscience researchMeditatorsBrain imagingObjective measuresEffortless awareness: using real time neurofeedback to investigate correlates of posterior cingulate cortex activity in meditators' self-report
Garrison KA, Santoyo JF, Davis JH, Thornhill TA, Kerr CE, Brewer JA. Effortless awareness: using real time neurofeedback to investigate correlates of posterior cingulate cortex activity in meditators' self-report. Frontiers In Human Neuroscience 2013, 7: 440. PMID: 23964222, PMCID: PMC3734786, DOI: 10.3389/fnhum.2013.00440.Peer-Reviewed Original ResearchDefault mode networkPosterior cingulate cortexSubjective experienceCognitive processesMode networkNeural activitySensory experiencePosterior cingulate cortex activitySelf-related thinkingPCC activityCingulate cortex activityFirst-person dataFirst-person experienceThird-person dataReal-time neurofeedbackPCC deactivationNeurophenomenological studiesMind wanderingPCC activationNeurofeedback studiesCortex activityCingulate cortexTheoretical constructsMeditationTheory methodologyWhat about the “Self” is Processed in the Posterior Cingulate Cortex?
Brewer JA, Garrison KA, Whitfield-Gabrieli S. What about the “Self” is Processed in the Posterior Cingulate Cortex? Frontiers In Human Neuroscience 2013, 7: 647. PMID: 24106472, PMCID: PMC3788347, DOI: 10.3389/fnhum.2013.00647.Peer-Reviewed Original ResearchPosterior cingulate cortexReal-time fMRI neurofeedbackCognitive processesPCC activityFMRI neurofeedbackCingulate cortexSelf-related processesSelf-referential processingKey brain regionsCognitive neuroscienceCognitive tasksNeurophenomenological studiesTrait adjectivesMind wanderingBrain activityDrug cravingSubjective experienceBrain regionsNeurofeedbackTaskMidline structuresMajority of studiesDifferent domainsSpecific contributionCortex