Effect of spatial alignment transformations in PCA and ICA of functional neuroimages.

Effect of spatial alignment transformations in PCA and ICA of functional neuroimages. Research Abstract Details 

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Effect of spatial alignment transformations in PCA and ICA of functional neuroimages. Abstract Text:

Ana S Lukic,Miles N Wernick,Yongyi Yang,Lars Kai Hansen,Konstantinos Arfanakis,Stephen C Strother,Ana S Lukic,Miles N Wernick,Yongyi Yang,Lars Kai Hansen,Konstantinos Arfanakis,Stephen C Strother,

It has been previously observed that independent component analysis (ICA), if applied to data pooled in a particular way, may lessen the need for spatial alignment of scans in a functional neuroimaging study. In this paper, we seek to determine analytically the conditions under which this observation is true, not only for spatial ICA, but also for temporal ICA and for principal component analysis (PCA). In each case, we find conditions that the spatial alignment operator must satisfy to ensure invariance of the results. We illustrate our findings using functional magnetic-resonance imaging (fMRI) data. Our analysis is applicable to both intersubject and intrasubject spatial normalization.

Effect of spatial alignment transformations in PCA and ICA of functional neuroimages. Publishing Authors By Initials

AS Lukic,MN Wernick,Y Yang,LK Hansen,K Arfanakis,SC Strother,AS Lukic,MN Wernick,Y Yang,LK Hansen,K Arfanakis,SC Strother,

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Effect of spatial alignment transformations in PCA and ICA of functional neuroimages. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: IEEE transactions on medical imaging

VOLUME: 26

Page Numbers: 1058-68

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ISSN: 0278-0062

DAY: 15

MONTH: Aug

YEAR: 2007

Effect of spatial alignment transformations in PCA and ICA of functional neuroimages. Information

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LANGUAGE: eng

NlmUniqueID: 8310780

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Grant and Affiliation Information for Effect of spatial alignment transformations in PCA and ICA of functional neuroimages.

AFFILIATION: Predictek Inc., Chicago, IL 60616, USA.

Country: United States

AGENCY: United States NINDS

GRANT: NS35273

ACRONYM: NS

MEDLINETA: IEEE Trans Med Imaging

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