Table 2.

Regions where cortical grey matter thickness had a significant negative correlation with premonitory urge (Premonitory Urge for Tics Scale) scores

Cluster size (mm2)	Talairach coordinates			Label
	x	y	z
67	60	−11	16	Right Rolandic Operculum
54	−29	−90	−2	Left Inferior Occipital Gyrus
15	−39	−17	−11	Left Insula
12	−33	−13	60	Left Pre‐Central Gyrus