Porovnání metod efektivní a funkční konektivity ve funkční magnetické rezonanci
| Autor: | Gajdoš, Martin |
|---|---|
| Jazyk: | čeština |
| Rok vydání: | 2012 |
| Předmět: |
fMRI
effective connectivity neurozobrazování HRF simulátor konektivity efektivní konektivita GIFT Granger causal modeling dynamické kauzální modelování dynamic causal modeling funkční konektivita neuroimaging analýza nezávislých komponent independent component analysis Monte Carlo simulace SPM connectivity simulator functional connectivity Grangerovo kauzální modelování Monte Carlo simulations BOLD |
| Druh dokumentu: | masterThesis |
| Popis: | Functional magnetic resonance imaging (fMRI) is recent important method, used in neuroimaging. The aim of this thesis is to develop software tool for comparison of two methods for functional and effective connectivity estimation. In this thesis are described the basics of magnetic resonance imaging, fMRI, basic terms of fMRI experiments and generally are described methods of functional and effective connectivity. Then are more detailed mentioned methods of dynamic causal modeling (DCM), Granger causal modeling (GCM) and independent component analysis (ICA). Practical implementation of DCM in toolbox SMP and ICA in toolbox GIFT is also mentioned. In purpose to describe behavior of DCM and GCM in dependence on several parameters are performed Monte Carlo simulations. Then the concept and realization of software tool for simulating connectivity and comparison of DCM and GCM are described. Finally results of DCM and GCM comparison and results of Monte Carlo simulations are discussed. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|