Appendix A. Detail description of four sentence reading tasks to measure cognitive impairments: a) Vowel utterances b) Tongue twister c) Diadochokinesis d) Short sentences.

Task	Description
Vowel utterances	Pronounce the five Japanese vowels for three seconds each, in the order of /i/, /e/, /a/, /o/, and /u/.
Toungue twister	Read the following short sentence including plosives (e.g., /k/ and /t/) as fast as possible three times:/ki-ta-ka-ra-ki-ta-ka-ta-ta-ta-ki-ki/.
Diadochokinesis	Repeat the following syllables consisting of plosives and vowels as fast as possible for five seconds: /pa/, /ta/, and /ka/.
Short sentences	Read the following short sentences including plosives three times at the usual conversational speed: /ta-n-ke-n-ka-wa-bo-u-ke-n-ga-da-i-su-ki-de-su/ and /ki-ta-ka-ze-to-ta-i-yo-u-ga-de-te-i-ma-su/.