Table 3 Descriptive statistics of the verbal and visuo-spatial n-back performance for each group; TH, typical hearing; HI, hearing impairment; RT, response time; SD, standard deviation.
WM domain | Verbal | Visuo-spatial | ||||
|---|---|---|---|---|---|---|
Task complexity | 1-back (SD) | 2-back (SD) | 1-back (SD) | 2-back (SD) | ||
Accuracy (%) | TH group (n = 36) | Active | 98.10 (3.61) | 86.86 (12.29) | 98.10 (3.91) | 82.07 (13.24) |
Sham | 98.73 (3.48) | 88.38 (10.52) | 97.85 (2.93) | 82.82 (10.50) | ||
HI group (n = 20) | Active | 98.86 (2.43) | 80 (13.81) | 97.95 (3.65) | 72.04 (15.23) | |
Sham | 98.40 (2.97) | 75 (20.95) | 95 (6.57) | 67.72 (14.07) | ||
RT (ms) | TH group (n = 36) | Active | 843.96 (110.91) | 1020.68 (154.95) | 774.31 (187.70) | 931.35 (171.56) |
Sham | 849.38 (128.33) | 1032.44 (160.61) | 768.41 (173.57) | 918.49 (172.77) | ||
HI group (n = 20) | Active | 846.02 (110.06) | 976.36 (180.03) | 708.94 (183.25) | 900.08 (161.81) | |
Sham | 828.78 (106.83) | 927.75 (159.38) | 691.10 (135.66) | 902.69 (157.64) | ||
