The effect of model order selection in group PICA

• Published in: Human brain mapping Vol. 31; no. 8; pp. 1207 - 1216
• Main Authors: Abou-Elseoud, Ahmed, Starck, Tuomo, Remes, Jukka, Nikkinen, Juha, Tervonen, Osmo, Kiviniemi, Vesa
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.08.2010; Wiley-Liss
• Subjects: Adult; Biological and medical sciences; Brain - blood supply; Brain - physiology; Brain Mapping; Female; FMRI; Hand - innervation; Humans; ICA; Image Processing, Computer-Assisted - methods; Investigative techniques, diagnostic techniques (general aspects); Magnetic Resonance Imaging - methods; Male; Medical sciences; model order; Models, Statistical; Movement - physiology; Nervous system; Oxygen - blood; PICA; Principal Component Analysis; Radiodiagnosis. Nmr imagery. Nmr spectrometry; Radionuclide investigations; Reproducibility of Results; resting-state networks; Young Adult; model order; Nervous system diseases; PICA; Radiodiagnosis; ICA; resting-state networks; Group selection; Models; Nuclear magnetic resonance imaging; FMRI

Independent component analysis (ICA) of functional MRI data is sensitive to model order selection. There is a lack of knowledge about the effect of increasing model order on independent components' (ICs) characteristics of resting state networks (RSNs). Probabilistic group ICA (group PICA) of 5...