A SURVEY OF THE SOURCES OF NOISE IN FMRI

作者：Greve Douglas N^*; Brown Gregory G; Mueller Bryon A; Glover Gary; Liu Thomas T

来源：Psychometrika, 2013, 78(3): 396-416.

DOI：10.1007/S11336-012-9294-0

• functional MRI
• blood oxygen level dependent
• first-level analysis
• higher level analysis
• sources of noise

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.

• 出版日期2013-7