2015
Comparison of glomerular activity patterns by fMRI and wide-field calcium imaging: Implications for principles underlying odor mapping
Sanganahalli BG, Rebello MR, Herman P, Papademetris X, Shepherd GM, Verhagen JV, Hyder F. Comparison of glomerular activity patterns by fMRI and wide-field calcium imaging: Implications for principles underlying odor mapping. NeuroImage 2015, 126: 208-218. PMID: 26631819, PMCID: PMC4733588, DOI: 10.1016/j.neuroimage.2015.11.048.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingHigh-resolution functional magnetic resonance imagingPost-synaptic activityPre-synaptic inputOlfactory bulb glomeruliFunctional imaging signalsWide-field calcium imagingMagnetic resonance imagingHemodynamic eventsAnesthetized ratsGlomerular layerNeuronal circuitryGlomerular clustersGlomerular patternNeuropil regionsCalcium imagingDye imagingResonance imagingActivity patternsDeoxyhemoglobin contrastGlomerular activity patternsGlomerular sheetGlomerular networkGlomeruliRole of mitochondrial calcium uptake homeostasis in resting state fMRI brain networks
Kannurpatti SS, Sanganahalli BG, Herman P, Hyder F. Role of mitochondrial calcium uptake homeostasis in resting state fMRI brain networks. NMR In Biomedicine 2015, 28: 1579-1588. PMID: 26439799, PMCID: PMC4621005, DOI: 10.1002/nbm.3421.Peer-Reviewed Original ResearchConceptsSimilar dose-dependent decreaseDose-dependent decreaseCaudate putamenBrain regionsBlood oxygen level-dependent fluctuationsBrain energy metabolismLevel-dependent fluctuationsBrain functional organizationSomatosensory cortexAnesthetized ratsDifferent functional networksFunctional organizationDrug treatmentVascular densityHippocampal regionThalamic regionsDifferent physiological impactsBOLD fluctuationsRSFC networksIntrinsic activityState fMRINeural signalingBrain networksPutamenFMRI brain networks
2009
Tactile and Non-tactile Sensory Paradigms for fMRI and Neurophysiologic Studies in Rodents
Sanganahalli BG, Bailey CJ, Herman P, Hyder F. Tactile and Non-tactile Sensory Paradigms for fMRI and Neurophysiologic Studies in Rodents. Methods In Molecular Biology 2009, 489: 213-242. PMID: 18839094, PMCID: PMC3703391, DOI: 10.1007/978-1-59745-543-5_10.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingBlood oxygenation level-dependent (BOLD) signal changesDifferent peripheral stimuliSensory paradigmsLevel-dependent signal changesFunctional imaging toolMagnetic resonance imagingBOLD signal changesDependent signal changesCortical perceptionSignal changesNeurophysiologic studiesAnesthetized ratsNeuronal activityStimulation protocolPeripheral stimuliPharmacological agentsHuman studiesAnimal modelsFuture diagnostic useVariety of modalitiesResonance imagingInvasive natureNeurophysiologic markersSensory systems