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. 2014 Mar 19;8:31. doi: 10.3389/fncom.2014.00031

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Copyright © 2014 Stephen, Lepage, Eden, Brunner, Schalk, Brumberg, Guenther and Kramer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Canonical correlation improves detectability of weak inter-regional connections. While the total SNR on each electrode is about 0.14, the correlated signals contributing to each true edge (5 per node) are weak, with SNR of about 0.03. For more details about the simulation, see Results section Canonical Correlation Improves Detectability of Weak Inter-Regional Connections (“Example 1” in Table A1). Shown are the true network (left), binary network (middle), and P(edge) (right) for correlation and canonical correlation networks. In all networks, nodes are color-coded according to region, and edges occur between regions.