acronym | description | dependent variable |
---|---|---|
walk | walk at preferred speed down a 2.2 m wide hallway, or along a 0.8 m wide circular path | mean speed |
walkn | walk at preferred speed along a 0.2 m wide circle | mean speed |
walknf | walk at maximum speed along a 0.2 m wide circle | mean speed |
treadmillo | walk on a treadmill (elderly 0.8, younger 1.2 m/s), while obstacles appear at unknown intervals | percent of obstacles negotiated without contact |
spell | spell a word of 18–21 letters | number of correctly spelled letters per 20 s |
shape | hear names of 10 geometrical shapes while walking, and repeat them afterwards | number of correctly repeated shapes |
button | close nine different buttons on a jacket, open them, close them again, etc. | number of completed button actions per 120 s |
detect | press knob when a dot appearing in a random-dot pattern forms a square with three pre-existing dots | percent and RT of hits, percent of correct rejections |