Table 1.

Sensory organisation test

Condition	Vision	Surface	Surround	Interference
1	Eyes open	Stable	Fixed	Null
2	Eyes closed	Stable	Fixed	Vision
3	Eyes open	Stable	Unfixed	Vision
4	Eyes open	Unstable	Fixed	Somatosensation
5	Eyes closed	Unstable	Fixed	Somatosensation and vision
6	Eyes open	Unstable	Unfixed	Somatosensation and vision