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. 2012 Dec 19;1(6):e001735. doi: 10.1161/JAHA.112.001735

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© 2012 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley-Blackwell.

This is an Open Access article under the terms of the Creative Commons Attribution Noncommercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Figure 1. — Cerebral air embolism induced EEG power changes only in MA patients with PFO, not in PFO patients without migraine or MA patients without PFO. Emboli-induced spectral power changes (ΔP) were calculated for each electrode location by subtracting the baseline spectrum from the postinjection spectrum in each subject and were averaged for every group (columns). ΔP values (in decibels) are color-coded, with higher values depicting an increase. Changes in the power for total spectra (top rows) and for theta (middle rows) and alpha (bottom rows) bands are illustrated separately. MA indicates migraine with aura; PFO, patent foramen ovale.