Abstract

There are well-documented unimodal sensory differences in migraine compared to control groups
both during, and between migraine attacks. There is also some evidence of multisensory integration
differences in migraine groups compared to control groups, however the literature on this topic is
more limited. There are interesting avenues in the area of visual–vestibular integration, which might
have practical implications, e.g., motion sickness and nausea in migraine. Recent work has been investigating
the possibility of visual–auditory integration in migraine, and found possible differences
in the susceptibility to the sound-induced flash illusion in particular, which could give insights into
relative excitability of different areas of the cortex, and also into mechanisms for the illusions themselves.
This review updates the most recent literature and also highlights potentially fruitful areas of
research to understand one of the most common neurological disorders.