Somatosensory perception in Visual Snow Syndrome: a comparison to age-, sex- and migraine-matched controls using Quantitative Sensory Testing - no evidence of altered somatosensory thresholds

These results suggest that VSS, despite being recognized as a multisensory disorder, seems to have no direct impact on somatosensory perception, supporting a predominantly higher-order condition of visual and sensory integration rather than a primary somatosensory dysfunction. Additionally, VSS patients showed significantly earlier migraine onset compared to controls, suggesting shared underlying mechanisms with migraine with aura, which would require further investigations.