2024
Volume-Optimal Persistence Homological Scaffolds of Hemodynamic Networks Covary with MEG Theta-Alpha Aperiodic Dynamics
Nguyen N, Hou T, Amico E, Zheng J, Huang H, Kaplan A, Petri G, Goñi J, Kaufmann R, Zhao Y, Duong-Tran D, Shen L. Volume-Optimal Persistence Homological Scaffolds of Hemodynamic Networks Covary with MEG Theta-Alpha Aperiodic Dynamics. Lecture Notes In Computer Science 2024, 15003: 519-529. PMID: 39949393, PMCID: PMC11816146, DOI: 10.1007/978-3-031-72384-1_49.Peer-Reviewed Original ResearchFunctional magnetic resonance imagingHigher-order propertiesHuman Connectome Project Young Adult datasetDistribution of cavitiesAperiodic dynamicsAperiodic activityFunctional magnetic resonance imaging dataFunctional connectomePairwise interactionsConnectomeSpatial distribution of cavitiesDynamic insightsTask-positive stateHomologous scaffoldsSpatial distributionStatePersistent homologyMagnetoencephalographyInduced connectionResting stateNeuroimaging modalitiesYoung Adult datasetCortical regionsMultiple Intrinsic Timescales Govern Distinct Brain States in Human Sleep
Lendner J, Lin J, Larsson P, Helfrich R. Multiple Intrinsic Timescales Govern Distinct Brain States in Human Sleep. Journal Of Neuroscience 2024, 44: e0171242024. PMID: 39187378, PMCID: PMC11484545, DOI: 10.1523/jneurosci.0171-24.2024.Peer-Reviewed Original ResearchConceptsPower spectrumBrain statesDecay processAperiodic activityIntrinsic timescalesHuman intracranial electroencephalographyTimescalesDecaySpectraNeuronal oscillationsDecay functionNonrapid eye movement sleepElectrophysiological power spectrumPhysical propertiesEye movement sleepNeural populationsRegion-specific mannerHuman sleepTemporal regularityStateMovement sleepOscillationsSuperpositionPharmacological modulation
2023
Oscillatory and aperiodic neuronal activity in working memory following anesthesia
Lendner J, Harler U, Daume J, Engel A, Zöllner C, Schneider T, Fischer M. Oscillatory and aperiodic neuronal activity in working memory following anesthesia. Clinical Neurophysiology 2023, 150: 79-88. PMID: 37028144, DOI: 10.1016/j.clinph.2023.03.005.Peer-Reviewed Original ResearchConceptsVerbal learningMemory functionBrain activityCognitive impairmentWorking Memory TaskWorking memory accuracyAssociated with cognitive impairmentMemory taskWorking memoryMemory accuracyMemory deficitsNeuropsychological assessmentElectroencephalographic biomarkerPostoperative cognitive impairmentNeuronal activityPreoperative performanceElectroencephalography markersAperiodic activityPostoperative sessionsMale patientsGeneral anesthesiaImpairmentMemoryScalp electroencephalographyPatients
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