| Overall order number | 1st task (2 consecutive trials) | 2nd task (2 consecutive trials) |
| 1 | Head-touch, light, hands-free | Sit-touch, sound, hands-occupied | 2 | Head-touch, light, hands-occupied | Sit-touch, sound, hands-free | 3 | Sit-touch, sound, hands-free | Head-touch, light, hands-occupied | 4 | Sit-touch, sound, hands-occupied | Head-touch, light, hands-free | 5 | Sit-touch, light, hands-free | Head-touch, sound, hands-occupied | 6 | Sit-touch, light, hands-occupied | Head-touch, sound, hands-free | 7 | Head-touch, sound, hands-free | Sit-touch, light, hands-occupied | 8 | Head-touch, sound, hands-occupied | Sit-touch, light, hands-free |
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