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Parallel ICA identifies sub-components of resting state networks that covary with behavioral indices
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نویسنده
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meier t.b. ,wildenberg j.c. ,liu j. ,chen j. ,calhoun v.d. ,biswal b.b. ,meyerand m.e. ,birn r.m. ,prabhakaran v.
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منبع
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frontiers in human neuroscience - 2012 - شماره : SEPTEMBER
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چکیده
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Parallel independent component analysis (para-ica) is a multivariate method that can identify complex relationships between different data modalities by simultaneously performing independent component analysis on each data set while finding mutual information between the two data sets. we use para-ica to test the hypothesis that spatial sub-components of common resting state networks (rsns) covary with specific behavioral measures. resting state scans and a battery of behavioral indices were collected from 24 younger adults. group ica was performed and common rsns were identified by spatial correlation to publically available templates. nine rsns were identified and para-ica was run on each network with a matrix of behavioral measures serving as the second data type. five networks had spatial sub-components that significantly correlated with behavioral components. these included a sub-component of the temporo-parietal attention network that differentially covaried with different trial-types of a sustained attention task,sub-components of default mode networks that covaried with attention and working memory tasks,and a sub-component of the bilateral frontal network that split the left inferior frontal gyrus into three clusters according to its cytoarchitecture that differentially covaried with working memory performance. additionally,we demonstrate the validity of para- ica in cases with unbalanced dimensions using simulated data. © 2012 meier,wildenberg,liu,chen,calhoun,biswal,meyerand,birn and prabhakaran.
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کلیدواژه
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Behavior; Parallel ICA; Resting state fMRI; Resting state networks
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آدرس
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university of wisconsin,madison,wi 53705, United States, university of wisconsin,madison,wi 53705,united states,university of wisconsin,madison,wi 53705, United States, the mind research network,albuquerque,nm 87131,united states,department of electrical and computer engineering,university of new mexico,albuquerque,nm 87131, United States, the mind research network,albuquerque,nm 87131,united states,department of electrical and computer engineering,university of new mexico,albuquerque,nm 87131, United States, the mind research network,albuquerque,nm 87131,united states,department of electrical and computer engineering,university of new mexico,albuquerque,nm 87131, United States, department of radiology,university of medicine and dentistry of new jersey,newark,nj 07103, United States, university of wisconsin,madison,wi 53705,united states,department of medical physics,university of wisconsin,madison,wi 53705,united states,department of biomedical engineering,university of wisconsin,madison,wi 53706, United States, university of wisconsin,madison,wi 53705,united states,department of medical physics,university of wisconsin,madison,wi 53705,united states,department of psychiatry,university of wisconsin,madison,wi 53719, United States, university of wisconsin,madison,wi 53705,united states,university of wisconsin,madison,wi 53705,united states,department of psychiatry,university of wisconsin,madison,wi 53719,united states,department of radiology,university of wisconsin,madison,wi 53792, United States
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Authors
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