2021
Two-Tiered Response of Cardiorespiratory-Cerebrovascular Network to Orthostatic Challenge
Mukli P, Nagy Z, Racz F, Portoro I, Hartmann A, Stylianou O, Debreczeni R, Bereczki D, Eke A. Two-Tiered Response of Cardiorespiratory-Cerebrovascular Network to Orthostatic Challenge. Frontiers In Physiology 2021, 12: 622569. PMID: 33737882, PMCID: PMC7960776, DOI: 10.3389/fphys.2021.622569.Peer-Reviewed Original ResearchArterial blood pressureCerebral hemodynamicsBlood pressureOrthostatic stressPostural changesCerebral blood flow velocityHigh-pressure baroreflexesHomeostatic mechanismsPair-wise Pearson correlationBlood flow velocityYoung healthy adultsKey homeostatic mechanismCerebral autoregulationOrthostatic challengeCerebrovascular dynamicsHealthy adultsBreath intervalNon-invasive measurementHemodynamicsTwo-tiered responseHbT signalsOxygenationPhysiological perturbationsPearson correlationPhysiological systems
2018
Impact of Healthy Aging on Multifractal Hemodynamic Fluctuations in the Human Prefrontal Cortex
Mukli P, Nagy Z, Racz FS, Herman P, Eke A. Impact of Healthy Aging on Multifractal Hemodynamic Fluctuations in the Human Prefrontal Cortex. Frontiers In Physiology 2018, 9: 1072. PMID: 30147657, PMCID: PMC6097581, DOI: 10.3389/fphys.2018.01072.Peer-Reviewed Original ResearchCerebral hemodynamicsHemodynamic fluctuationsElderly groupCerebral hemodynamic fluctuationsNon-neuronal componentsMajority of subjectsNeurovascular couplingElderly subjectsHuman prefrontal cortexHealthy volunteersBrain cortexHemodynamic influenceYounger groupNeural functionPrefrontal cortexHealthy agingHemodynamicsNeural activitySlow componentCortex
2009
Fractal Characterization of Complexity in Dynamic Signals: Application to Cerebral Hemodynamics
Herman P, Kocsis L, Eke A. Fractal Characterization of Complexity in Dynamic Signals: Application to Cerebral Hemodynamics. Methods In Molecular Biology 2009, 489: 23-40. PMID: 18839086, DOI: 10.1007/978-1-59745-543-5_2.Peer-Reviewed Original ResearchConceptsCerebral hemodynamicsBrain cortexRat brain cortexLaser Doppler flowmetryAge-related stiffeningFunctional magnetic resonanceHemodynamic brain signalsDoppler flowmetryCerebral vasculatureTemporal lobeHuman studiesState of pathologyGray matterParenchymal regionsHemodynamic signalsHemodynamicsHuman brainCortexMagnetic resonanceMedical significance