2023
Resting-state fractal brain connectivity is associated with impaired cognitive performance in healthy aging
Czoch A, Kaposzta Z, Mukli P, Stylianou O, Eke A, Racz F. Resting-state fractal brain connectivity is associated with impaired cognitive performance in healthy aging. GeroScience 2023, 46: 473-489. PMID: 37458934, PMCID: PMC10828136, DOI: 10.1007/s11357-023-00836-z.Peer-Reviewed Original ResearchAge-related cognitive declineCognitive performanceCognitive declineBrain connectivityHealthy agingImpaired cognitive performanceComprehensive cognitive evaluationFunctional brain connectivityYoung control participantsVisual memoryAttention domainFrontoparietal connectionsTask performanceCognitive evaluationNeurophysiological markersMental workloadCognitive functionNeurophysiological basisControl participantsResponse latencyBrain regionsElectroencephalography (EEG) measurementsReduced performanceReaction timeEEG data
2021
Multifractal Functional Connectivity Analysis of Electroencephalogram Reveals Reorganization of Brain Networks in a Visual Pattern Recognition Paradigm
Stylianou O, Racz F, Kim K, Kaposzta Z, Czoch A, Yabluchanskiy A, Eke A, Mukli P. Multifractal Functional Connectivity Analysis of Electroencephalogram Reveals Reorganization of Brain Networks in a Visual Pattern Recognition Paradigm. Frontiers In Human Neuroscience 2021, 15: 740225. PMID: 34733145, PMCID: PMC8558231, DOI: 10.3389/fnhum.2021.740225.Peer-Reviewed Original ResearchFunctional connectivityHigher-order brain functionsFunctional connectivity analysisEyes-open stateBrain reorganizationHealthy volunteersBrain regionsBrain functionBrain connectivityDiseased populationsAnatomical networksSuccess rateFunctional couplingBrain networksEndpoint parametersNeuronal assembliesHuman brainConnectivity analysisObserved regional heterogeneityRecognition trialsLevelsRegional heterogeneityBrainTrialsRecognition paradigm
2019
Multifractal and entropy analysis of resting-state electroencephalography reveals spatial organization in local dynamic functional connectivity
Racz F, Stylianou O, Mukli P, Eke A. Multifractal and entropy analysis of resting-state electroencephalography reveals spatial organization in local dynamic functional connectivity. Scientific Reports 2019, 9: 13474. PMID: 31530857, PMCID: PMC6748940, DOI: 10.1038/s41598-019-49726-5.Peer-Reviewed Original ResearchConceptsDynamic functional connectivityFunctional connectivityResting-state brain activityResting-state electroencephalography recordingsFuture clinical researchResting-state electroencephalographyResting-state conditionsFunctional network topologyRegion-specific differencesHealthy subjectsPotential biomarkersBrain regionsClinical researchTemporal regionsOccipital regionBrain activityElectroencephalography recordingsBrainDFC analysisBiomarkers