Fig. 1.

Illustration of the three C-KAT battery tasks: a left is a schematic of first tracking trial (i.e. without ‘Guideline’), annotated with a dotted line to indicate the trajectory of the moving dot. Right is a schematic of the second tracking trial, which included the additional guideline; b schematic of the aiming subtest, annotated with dotted arrows implying the movements participants would make with their stylus to move off the start position, between target locations and to reach the finish position, the 4th panel’s annotations indicating the locations and order in which targets sequentially appeared; c left is a schematic depicting tracing path A and right is a schematic depicting tracing path B. The black shaky lines are an example of the ‘ink trails’ a participant would produce with their stylus in the course of tracing