Table 2.
Comparison of late positive potentials (LPPs) that averaged between 400 and 700 ms post-stimulus onset across the Internet gaming disorder and healthy control groups.
| Healthy control (n = 39) | Internet gaming disorder (n = 40) | F | p | |
|---|---|---|---|---|
| Mean (SD) | Mean (SD) | |||
| Game stimuli | ||||
| CP3 electrode site | 0.74 (1.61) | 1.42 (1.64) | 6.30 | 0.014* |
| CP1 electrode site | 0.70 (1.56) | 1.30 (1.86) | 5.17 | 0.026* |
| CPz electrode site | 0.60 (1.75) | 0.87 (2.06) | 0.06 | 0.43 |
| CP2 electrode site | 1.05 (1.78) | 0.80 (2.50) | 0.04 | 0.56 |
| CP4 electrode site | 1.82 (1.70) | 1.52 (2.19) | 0.14 | 0.71 |
| P3 electrode site | 3.15 (2.48) | 3.96 (3.03) | 4.80 | 0.03* |
| P1 electrode site | 3.03 (2.53) | 3.50 (3.02) | 3.37 | 0.07 |
| Pz electrode site | 2.66 (2.28) | 3.02 (2.89) | 2.38 | 0.13 |
| P2 electrode site | 2.96 (2.30) | 3.31 (3.28) | 2.08 | 0.15 |
| P4 electrode site | 3.85 (2.85) | 4.12 (3.46) | 2.67 | 0.11 |
| Neutral | ||||
| CP3 electrode site | 0.48 (2.13) | 0.79 (1.96) | 0.06 | 0.81 |
| CP1 electrode site | 0.66 (1.98) | 0.63 (1.96) | 1.00 | 0.32 |
| CPz electrode site | 0.52 (2.22) | 0.42 (2.16) | 1.33 | 0.25 |
| CP2 electrode site | 0.80 (2.02) | 0.67 (2.66) | 1.09 | 0.30 |
| CP4 electrode site | 1.24 (2.03) | 1.39 (2.53) | 0.39 | 0.53 |
| P3 electrode site | 2.59 (2.59) | 3.24 (2.54) | 0.94 | 0.34 |
| P1 electrode site | 2.72 (2.66) | 2.96 (2.60) | 0.10 | 0.75 |
| Pz electrode site | 1.93 (2.39) | 2.54 (2.72) | 0.00 | 0.98 |
| P2 electrode site | 2.23 (2.65) | 3.09 (3.13) | 0.27 | 0.61 |
| P4 electrode site | 3.06 (2.72) | 4.03 (3.34) | 0.26 | 0.61 |
*P < 0.05.