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Screenshots of Axon A and Axon B. Subjects had to draw to connect the circles in ascending order (from 1 to 25 for part A and from 1 to 13 and A to L for part B, alternating numbers and letters) on a single line, without crossing paths or lifting their finger from the screen. In case of errors in drawing, the app automatically guided subjects back to the last correct circle from which they continued the test.
