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. 2013 Feb 28;14(1):20. doi: 10.1186/1129-2377-14-20

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Copyright ©2013 Coppola et al; licensee Springer.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Left panel: transient N1-P1 [upper], steady-state windmill-dartboard 1H [middle] and partial-windmill 2H [lower] mean amplitudes in the first block of 100 averaged responses; Right panel: Visual evoked potential (VEP) amplitude block averages in each study group and for the three types of visual stimuli: transient (TR-)VEP [upper], steady state windmill-dartboard (W-D) [middle] and partial-windmill (P-R) [lower] VEPs (HV, healthy volunteers; MO, migraine without aura interictally; MA, migraine with aura interictally; Ictal, migraine without aura ictally); data expressed as mean ± SD).