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. 2018 Oct 24;13(10):e0205321. doi: 10.1371/journal.pone.0205321

Fig 1. Illustration of the motor and cognitive tests employed in the laboratory study.

Fig 1

First task illustrates the visuo-motor tracking task (VMT), where the 5 boxes/targets appears on the screen 1 s before the 12 s tracking begins. The cursor (green line) moves from left to right over the screen (fixed velocity) and the subject is instructed to adjust force on the strain gauge transducer to keep the cursor within the designated box at the given time. VMT alternates with the MATH_TYPE or MATH_PINCH and TARGET_PINCH tasks (listed in the order of how the tasks appear). During VMT, MATH_PINCH and TARGET_PINCH, subjects used the strain gauge, whereas in the MATH_TYPE the number pad was used (bottom pic, right). Figure adopted from [26] with permission.