It seems likely the test won’t go into treatments for horizontal cupulolithiasis because there isn’t clear evidence per the CPG and the names have been used interchangeably.
Roll Test:
Geotropic —> canalithiasis —> affected side is the one with stronger symptoms / nystagmus —> Treatment: BBQ Roll; 2017 BPPV CPG says “gufoni for geotropic / canalithiasis”
Ageotropic -> cupulolithiasis -> affected side is the one with weaker symptoms / nystagmus -> Treatment: 2017 BPPV CPG says “gufoni for ageotropic / cupulolithiasis”
What I was taught for horizontal cupulolithiasis… Casani; or Gufoni which converts it to canalithiasis which can then be treated with Appiani.
I think because it’s unclear the course group the maneuvers together as “modified libertory”. I could be wrong!