Title :
Comparing fMRI data processing methods with respect to possible inaccuracy
Author :
Mikl, M. ; Marecek, R. ; Prikryl, R.
Author_Institution :
CEITEC-Central Eur. Inst. of Technol., Masaryk Univ., Brno, Czech Republic
Abstract :
We present the comparison of several methods to analyze functional magnetic resonance imaging data with respect to some inaccuracy in subject´s response (e.g. missing response to stimuli). Approaches based on general linear model, independent component analysis, and combined methods were used to analyze both simulated and real data with unknown (real data) and known (simulated data) levels of inaccuracy. Our results suggest combined approaches as the best choice for single subject analyses. No significant differences between the methods were observed for group results.
Keywords :
biomedical MRI; independent component analysis; medical image processing; fMRI data processing methods; functional magnetic resonance imaging data; general linear model; inaccuracy; independent component analysis; missing response; real data; simulated data; single subject analyses; subject response; Brain modeling; Data models; Educational institutions; Magnetic resonance imaging; Mathematical model; Noise; Sensitivity; GLM; ICA; fMRI; inaccuracy; modelling; simulations;
Conference_Titel :
Systems, Signals and Image Processing (IWSSIP), 2012 19th International Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4577-2191-5