title: A survey of the sources of noise in fMRI.
abstract: Functional magnetic resonance imaging (fMRI) is a noninvasive method for measuring brain function by correlating temporal changes in local cerebral blood oxygenation with behavioral measures. fMRI is used to study individuals at single time points, across multiple time points (with or without intervention), as well as to examine the variation of brain function across normal and ill populations. fMRI may be collected at multiple sites and then pooled into a single analysis. This paper describes how fMRI data is analyzed at each of these levels and describes the noise sources introduced at each level.
authors.affiliation: Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA, greve@nmr.mgh.harvard.edu.
authors.forename: Douglas N
authors.initials: DN
authors.lastname: Greve
authors.forename: Gregory G
authors.initials: GG
authors.lastname: Brown
authors.forename: Bryon A
authors.initials: BA
authors.lastname: Mueller
authors.forename: Gary
authors.initials: G
authors.lastname: Glover
authors.forename: Thomas T
authors.initials: TT
authors.lastname: Liu
mesh_terms: D001921:Brain / Q000098:blood supply / Q000502:physiology; D003625:Data Collection; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009622:Noise; D010100:Oxygen / Q000097:blood; D012815:Signal Processing, Computer-Assisted
chemical_list: D010100:Oxygen
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