A Survey of the Sources of Noise in fMRI

Douglas Greve (), Gregory Brown, Bryon Mueller, Gary Glover and Thomas Liu

Psychometrika, 2013, vol. 78, issue 3, 396-416

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. Copyright The Psychometric Society 2013

Keywords: functional MRI; blood oxygen level dependent; first-level analysis; higher level analysis; sources of noise (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s11336-012-9294-0

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