2008
Multimodal Measurements of Blood Plasma and Red Blood Cell Volumes during Functional Brain Activation
Herman P, Sanganahalli BG, Hyder F. Multimodal Measurements of Blood Plasma and Red Blood Cell Volumes during Functional Brain Activation. Cerebrovascular And Brain Metabolism Reviews 2008, 29: 19-24. PMID: 18766196, PMCID: PMC2714270, DOI: 10.1038/jcbfm.2008.100.Peer-Reviewed Original ResearchConceptsLaser Doppler flowmetryFunctional magnetic resonance imagingMagnetic resonance imagingMagnetic field inhomogeneityLaser lightField inhomogeneityResonance imagingContralateral primary somatosensory cortexRed blood cell volumePrimary somatosensory cortexCerebral blood volumeBlood oxygenation level-dependent (BOLD) contrastBlood cell volumeFunctional brain activationLevel-dependent contrastUltra-small superparamagnetic iron oxideBlood plasmaContrast agentsIntravascular contrast agentCBV signalsTotal CBVPlasmaRed blood cellsDependent contrastDynamic measurements
2007
Energetics of neuronal signaling and fMRI activity
Maandag NJ, Coman D, Sanganahalli BG, Herman P, Smith AJ, Blumenfeld H, Shulman RG, Hyder F. Energetics of neuronal signaling and fMRI activity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2007, 104: 20546-20551. PMID: 18079290, PMCID: PMC2154468, DOI: 10.1073/pnas.0709515104.Peer-Reviewed Original ResearchConceptsRSN activityContralateral S1FMRI activationBaseline stateContralateral primary somatosensory cortexPrimary somatosensory cortexSomatosensory cortexIntracortical interactionsFiring rateNeuronal signalingFMRI activityEnsemble activityEnsemble firingStimulationHalothaneCortexNeuronsBaselineActivationFMRI dataLarge majorityAnesthesiaActivityRats