Ten Key Observations on the Analysis of Resting-state Functional MR Imaging Data Using Independent Component Analysis
Vince D Calhoun1, Nina de Lacy2
1The Mind Research Network, 1101 Yale Boulevard Northeast, Albuquerque, NM 87106, USA; Department of ECE, University of New Mexico, 1 University of New Mexico, Albuquerque, NM 87131, USA.
Abstract:
For more than 20 years, the powerful, flexible family of independent component analysis (ICA) techniques has been used to examine spatial, temporal, and subject variation in functional magnetic resonance (fMR) imaging data. This article provides an overview of 10 key principles in the basic and advanced application of ICA to resting-state fMR imaging. ICA's core advantages include robustness to artifact; false-positives and autocorrelation; adaptability to variant study designs; agnosticism to the temporal evolution of fMR imaging signals; and ability to extract, identify, and analyze neural networks. ICA remains in the vanguard of fMRI methods development.
