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ZENODO
Article . 2023
License: CC BY
Data sources: ZENODO
ZENODO
Article . 2023
License: CC BY
Data sources: Datacite
ZENODO
Article . 2023
License: CC BY
Data sources: Datacite
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Statistics of Intrinsic FMRI Data

Authors: Rowe, Daniel;

Statistics of Intrinsic FMRI Data

Abstract

In fMRI, it is often assumed that fMRI data are normally distributed in real and imaginary parts which lead to Ricean distributed in magnitude, which is approximately normal when the signal-to-noise ratio is large. Here, two fMRI data sets were acquired to examine this assumption. Both data sets image a plastic sphere containing an agarose gel. The first data set utilizes a typical fMRI pulse sequence to acquire data except the RF which produces the signal is omitted. The resulting data should be purely normally distributed noise in real and imaginary parts. Subsequently, a second data set is acquired with the same pulse sequence except the RF was not omitted. The resulting data should be normally distributed in real and imaginary parts which lead to Ricean distributed in magnitude. The noise properties of the data are explored.

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Keywords

fmri, voxel, mri

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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