Table 1

Brain areas of significant differential regional cerebral blood flow increase in patients with visual snow syndrome respect to healthy controls (main effect of group), shown in coordinate Montreal Neurological Institute space with relative T and k values

Brain region
Cluster description
Peak descriptionTkPeak coordinates
Cuneus and precuneusRight cuneus, precuneus, IPL, SPL, AG, superior occipital lobule, post central gyrus, BA75.3774252−5454
Cuneus and precuneusLeft cuneus, precuneus, IPL, SPL, middle occipital lobule, AG, post central gyrus, BA74.71380−26−8232
Superior temporal gyrusLeft superior temporal gyrus, primary auditory cortex, IPL, transverse temporal gyrus4.62219−54−3014
Precentral gyrusLeft premotor cortex, FEF, middle frontal gyrus, inferior frontal gyrus, BA64.61460−46046
Precentral gyrusRight premotor cortex, FEF, middle frontal gyrus, inferior frontal gyrus, BA64.3542244048
Cerebellum and fusiform gyrusLeft cerebellum, fusiform gyrus, inferior temporal gyrus4.22310−38−56−22
Inferior parietal lobuleLeft IPL, superior temporal gyrus, supramarginal gyrus, BA404.13209−64−4042
Posterior cingulate gyrusBilateral PCC, medial precuneus4.1696−4−4046
Supplementary motor areaBilateral SMA, superior frontal gyrus, anterior cingulate gyrus3.8240221052
  • An initial voxel threshold of p<0.001 and cluster correction to p<0.05 was applied.

  • AG, angular gyrus; BA, Brodmann area; FEF, frontal eye fields; IPL, inferior parietal lobule; PCC, posterior cingulate cortex; SMA, supplementary motor area; SPL, superior parietal lobule.