*Video on How to Perform Head Roll Exercise:* kzbin.info/www/bejne/l2WXYWWNmMaEd5Y *Full playlist of red/black thin/thick stripes moving either right/left:* kzbin.info/aero/PLblLJazSSA3R1UjH-rLu6kYTPGh5Vfb-r *Real-life optokinetic training due to visual vertigo can be found here:* kzbin.info/aero/PLblLJazSSA3T4L5LWXuaS3OYWEETr5ARf