“…All participants included in the present study underwent an unstructured clinical interview. Several classical neurocognitive assessments were performed for each participant, including a block design (Wechsler Adult Intelligence Scale‐Chinese Revision; WAIS‐RC) digit span test (DST) (Dai, Ryan, Paolo, & Harrington, 1990), digital symbol substitution test (DSST) (Tang, Lau, & Chang, 1996), mapping test (Ryan, Dal, Paolo, & Harrington, 1992), similarity test (Ward & Ryan, 1997), and visuospatial test (Ryan et al., 1992). DST is a standard test of a person's working memory for numbers to evaluate attention and temporary working memory abilities.…”