The amplitude of the resting-state fMRI global signal is related to EEG vigilance measures

Chi Wah Wong, Valur Olafsson, Omer Tal, +1

NeuroImage

PsychiatryNeurophysiologyBrain FunctionMedicineEeg Signal Processing +10

Mechanical failure modes of chronically implanted planar silicon-based neural probes for laminar recording

Takashi D.Y. Kozai, Kasey Catt, Xia Li, +4

Biomaterials

Medical ElectronicsMechanical Failure ModesEngineeringImplantable SensorMicrofabrication +11

Toeplitz-based iterative image reconstruction for MRI with correction for magnetic field inhomogeneity

Jeffrey A. Fessler, Sang-Woo Lee, Valur Olafsson, +2

IEEE Transactions on Signal Processing

Numerical AnalysisImage ReconstructionEngineeringAdvanced ImagingMagnetic Resonance +14

Anti-correlated networks, global signal regression, and the effects of caffeine in resting-state functional MRI

Chi Wah Wong, Valur Olafsson, Omer Tal, +1

NeuroImage

Global Signal RegressionResting-state Functional MriBrain MappingNeuroimagingConnectomics +10

Regularized Field Map Estimation in MRI

Amanda K. Funai, Jeffrey A. Fessler, Desmond Yeo, +2

IEEE Transactions on Medical Imaging

Image ReconstructionEngineeringReconstruction TechniqueMedical ImagingAdvanced Imaging +12

Maturation of the human striatal dopamine system revealed by PET and quantitative MRI

Bart Larsen, Valur Olafsson, Finnegan J. Calabro, +7

Nature Communications

Enhanced identification of BOLD-like components with multi-echo simultaneous multi-slice (MESMS) fMRI and multi-echo ICA

Valur Olafsson, Prantik Kundu, Eric C. Wong, +2

NeuroImage

Neuroimaging ModalityMedical ImagingMulti-echo Simultaneous Multi-sliceEnhanced IdentificationBrain Mapping +7

Dopamine-related striatal neurophysiology is associated with specialization of frontostriatal reward circuitry through adolescence

Ashley C. Parr, Finnegan J. Calabro, Bart Larsen, +5

Progress in Neurobiology

Neurobiological MechanismFrontostriatal Reward CircuitryPsychiatryDevelopmental Cognitive NeuroscienceBrain Function +10

Fast Joint Reconstruction of Dynamic $R_2^*$ and Field Maps in Functional MRI

Valur Olafsson, Douglas C. Noll, Jeffrey A. Fessler

IEEE Transactions on Medical Imaging

Image ReconstructionField MapsEngineeringFast Joint ReconstructionFmri Data +17

Caffeine-Induced Global Reductions in Resting-State BOLD Connectivity Reflect Widespread Decreases in MEG Connectivity

Omer Tal, Mithun Diwakar, Chi Wah Wong, +4

Frontiers in Human Neuroscience

Caffeine-induced Global ReductionsBrain OrganizationFunctional NeuroimagingSocial SciencesNeurology +17