2016
Fluctuations in Global Brain Activity Are Associated With Changes in Whole-Brain Connectivity of Functional Networks
Scheinost D, Tokoglu F, Shen X, Finn ES, Noble S, Papademetris X, Constable RT. Fluctuations in Global Brain Activity Are Associated With Changes in Whole-Brain Connectivity of Functional Networks. IEEE Transactions On Biomedical Engineering 2016, 63: 2540-2549. PMID: 27541328, PMCID: PMC5180443, DOI: 10.1109/tbme.2016.2600248.Peer-Reviewed Original ResearchConceptsGlobal brain activityResting-state networksWhole-brain connectivityBrain activityResting-state functional magnetic resonance imagingTime pointsFunctional resting-state networksFunctional magnetic resonance imagingMagnetic resonance imagingResting-state studyBrain statesRSN connectivitySensory functionSubcortical regionsResonance imagingCognitive functionCoactivation patternsUnique brain statesBrain connectivityActivity stateCritical time pointsFunctional networksSignal intensityVoxel-based methodBrain dynamics
2011
A whole-brain voxel based measure of intrinsic connectivity contrast reveals local changes in tissue connectivity with anesthetic without a priori assumptions on thresholds or regions of interest
Martuzzi R, Ramani R, Qiu M, Shen X, Papademetris X, Constable RT. A whole-brain voxel based measure of intrinsic connectivity contrast reveals local changes in tissue connectivity with anesthetic without a priori assumptions on thresholds or regions of interest. NeuroImage 2011, 58: 1044-1050. PMID: 21763437, PMCID: PMC3183817, DOI: 10.1016/j.neuroimage.2011.06.075.Peer-Reviewed Original ResearchConceptsIntrinsic connectivity contrastBrain circuitsFunctional connectivity fMRISpontaneous fluctuationsFunctional magnetic resonance imaging (fMRI) signalsWhole-brain voxelDifferent brain circuitsConnectivity analysisMagnetic resonance imaging signalsSevoflurane anesthesiaIntrinsic connectivityIndividual tissue elementsICC analysisICC measuresRegion of interestTissue elementsFMRI signalsBrainNon-invasive mannerFunctional organizationImaging signalsSeed regionSingle seed regionTissue connectivityPrevious studies