Mean (SD) reaction time (ms) of patients and controls on high load mental tasks under each postural control condition
| Sitting | Standing | Destabilised | |
| Spatial task: | |||
| Controls | 2191 (251) | 2159 (274) | 2152 (278) |
| Patients | 2247 (206) | 2255 (296) | 2205 (299) |
| Non-spatial task: | |||
| Controls | 2057 (177) | 2019 (218) | 2011 (177) |
| Patients | 2116 (196) | 2135 (205) | 2129 (232) |