Table 2.

Localising the affected ear in lateral canal BPV.

	Geotropic variant	Apogeotropic variant
Supine roll test (Nuti et al., 1996)	Excitatory nystagmus when affected ear is undermost – Affected ear down shows the strongest nystagmus	Inhibitory nystagmus when affected ear is undermost – Unaffected ear down shows the strongest nystagmus
Bow and Lean Test/Head Pitch Test (Asprella-Libonati, 2008, Choung et al., 2006)	Face up: Inhibitory nystagmus – beats towards unaffected ear Face down: Excitatory nystagmus - beats towards affected ear	Face up: Excitatory nystagmus – beats towards affected ear Face down: Inhibitory nystagmus – beats towards unaffected ear
Sitting to supine (Nuti et al., 1996)	Inhibitory nystagmus – beats towards unaffected ear	Excitatory nystagmus – beats towards affected ear
Pseudospontaneous nystagmus (Asprella-Libonati, 2005)	Inhibitory nystagmus – beats towards unaffected ear	Excitatory nystagmus – beats towards affected ear