Table 1 Comparison between subjects with Internet gaming addiction and healthy controls in probability discounting task.
Studies | IGD (N); CON (N) | Age | Edu (years) | Female (%) | Severity of IGD | Gaming duration (h/day) | Consecutive choices for each of probabilities | Probability options (%) | RT (ms); blank (ms); magnitude of first adjustment | Max. reward (USD) | Analysis | Country |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Li et al.37 | 28; 28 | 21.09 | 15.86 | 58.90 | 6.07 (YDQ) | 3.73 | 7 | 95, 75, 55, 25, 10, 5 | NA; NA; half of the difference between guaranteed and risky choices | 3654 | AUC | China |
Tian et al.38 | 42; 41 | 15.67 | 9.76 | 48.20 | DSM-5 | 4.62 | 7 | 95, 75, 50, 30, 10, 5 | NA; NA; one fourth | 7307 | AUC | China |
Wang et al.29 | 42; 41 | 22.52 | > 13 | 0.00 | DSM-5 | n/a | 9 | 90, 80, 70, 60, 50, 40, 30, 20, 10 | 400; 500; NA | 15 | h value | China |
Wang et al.39 | 18;20 | 21.45 | 14.52 | 0.00 | DSM-5 | n/a | 9 | 90, 80, 70, 60, 50, 40, 30, 20, 10 | 400; 500; NA | 15 | h value | China |
Wang et al.40 | 20; 20 | 21.73 | > 13 | 0.00 | DSM-5 | 2.89 | 9 | 90, 80, 70, 60, 50, 40, 30, 20, 10 | 400; 500; NA | 15 | h value | China |
