Abbreviations
CSD cortical spreading depression
GWAS genome-wide association studies
HV Healthy Volunteer
MA migraine with pure visual Aura
MA+ migraine with complex aura
MAtot total group of migraine with aura patients
MO migraine without aura
MwA migraine with aura
VEP visual evoked potential
Competing interests
The authors declare that they have no competing interests.
Authors’ contributions
GC made substantial contributions to interpretation of data as well as in drafting the manuscript. MS, VP, JS and FP were implied in the interpretation of data as well as in drafting the manuscript; ADR, FM, and AF gave critical revision of the manuscript for important intellectual content. CDL, DDL and MB were implied in recording and analyzing data. All authors read and approved the final manuscript.

Acknowledgment
Italian Ministry of Health and Fondazione Roma financially supported the research for this paper.