Divided and visual-spatial attention
We used the trail making test (TMT) to assess divided and visual-spatial attention. The TMT comprises parts A and B consisting of 25 circles each on a sheet of A4 paper. In part A, the circles are numbered one to 25 (in each circle), and the participants drew lines to connect them in numerical order. In part B, the circles contain numbers from one to 13 and 12 Chinese zodiac signs (e.g. rat, ox, and tiger). As in part A, the participants drew lines connecting the circles in ascending numerical order but alternated between numbers and zodiac signs (i.e. one-rat-two-ox-three-tiger) [