2023
Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb
James S, Sanggaard S, Akif A, Mishra S, Sanganahalli B, Blumenfeld H, Verhagen J, Hyder F, Herman P. Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb. Cerebrovascular And Brain Metabolism Reviews 2023, 43: 1891-1904. PMID: 37340791, PMCID: PMC10676132, DOI: 10.1177/0271678x231183887.Peer-Reviewed Original ResearchConceptsVasodilatory responseCerebral cortexNeurovascular couplingOlfactory bulbNeuronal activityBrief sensory stimuliRegional neurovascular couplingStimulus-induced activityHypercapnia challengeVascular toneNeuronal deactivationHemodynamic responseNeuronal excitabilityNeuronal responsesCalcium transientsBrain functionHemodynamic signalsSensory stimuliVasodilationHypercapniaCortexMiceCareful appraisalStimuliMetabolic waste
2022
Thalamic activations in rat brain by fMRI during tactile (forepaw, whisker) and non-tactile (visual, olfactory) sensory stimulations
Sanganahalli BG, Thompson GJ, Parent M, Verhagen JV, Blumenfeld H, Herman P, Hyder F. Thalamic activations in rat brain by fMRI during tactile (forepaw, whisker) and non-tactile (visual, olfactory) sensory stimulations. PLOS ONE 2022, 17: e0267916. PMID: 35522646, PMCID: PMC9075615, DOI: 10.1371/journal.pone.0267916.Peer-Reviewed Original ResearchConceptsDorsal lateral geniculate nucleusVentral posterior medialVentral posterior lateralThalamic activationFunctional MRIPosterior medial thalamic nucleusMedial thalamic nucleiSensory stimuliLateral geniculate nucleusPost-mortem humanOlfactory stimuliHigh-field functional MRIField functional MRIWhisker stimuliDeep brain regionsRat thalamusThalamic nucleiGeniculate nucleusMediodorsal nucleusRat brainInferior colliculusThalamusDifferent sensory stimuliCortical activationCortical activity