Title | ||
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Blind source separation of functional MRI scans of the human brain based on canonical correlation analysis. |
Abstract | ||
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A novel approach for multi-subject blind source separation (BSS) of brain functional magnetic resonance imaging (fMRI) data is proposed. Group-level comparison analysis is common in the human brain fMRI analysis. Canonical correlation analysis (CCA) for BSS (BSS-CCA) relies on the basis that all meaningful real signals are auto-correlated compared with white noise, which should generally not be considered. By merely requiring that the second-order statistic be zero, BSS-CCA is more relaxed than independent component analysis (ICA), which demands mutual statistics of all orders to be zero. Based on spatial BSS-CCA, we propose an approach termed group BSS-CCA for the analysis of multi-subject fMRI data. In terms of the simulated situation, in which “sources” were partially overlapping in space, we determined that identification using group BSS-CCA was more efficient than that using group ICA. The results from a real data experiment revealed that the proposed group BSS-CCA approach was effective for extracting functional brain networks that were functionally distinct and spatially overlapping from the fMRI data of the human brain. |
Year | DOI | Venue |
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2017 | 10.1016/j.neucom.2017.01.106 | Neurocomputing |
Keywords | Field | DocType |
fMRI,Brain network,Canonical correlation analysis,Blind source separation | Brain network,Canonical correlation,White noise,Artificial intelligence,Blind signal separation,Pattern recognition,Functional magnetic resonance imaging,Statistic,Speech recognition,Human brain,Independent component analysis,Machine learning,Mathematics | Journal |
Volume | Issue | ISSN |
269 | C | 0925-2312 |
Citations | PageRank | References |
0 | 0.34 | 8 |
Authors | ||
6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Xingjie Wu | 1 | 0 | 0.34 |
Ling-li Zeng | 2 | 25 | 6.79 |
Hui Shen | 3 | 134 | 15.32 |
Ming Li | 4 | 13 | 4.67 |
YunAn Hu | 5 | 17 | 6.91 |
Dewen Hu | 6 | 1290 | 101.20 |