Task-switching test (SWITCH)
The VTS’s task-switching test measures flexible task-switching ability as an aspect of the executive functions. During the task, a sequence of circles and triangles appeared on the monitor in either light or dark grey. The participant was asked to react to either the shape (circle or triangle) or brightness (light or dark) of the figure by pressing the appropriate button of the VTS panel. The test took about 12 min. The task switching speed and accuracy were used in the statistical analysis.