Table 2. Comparison of Go/Nogo-N2 amplitudes and latencies across three groups.
| HC | IGD | OCD | Statistical analysisa |
||
|---|---|---|---|---|---|
| (N = 26) | (N = 27) | (N = 24) | F | Uncorrected P | |
| Go condition | |||||
| N2 amplitude (μV)/latency (ms) at F1 | −2.9 (2.0)/243.9 (50.1) | −3.0 (2.2)/250.0 (45.5) | −2.6 (2.0)/270.6 (56.3) | 0.165/1.904 | 0.848/0.156 |
| N2 amplitude (μV)/latency (ms) at Fz | −3.3 (2.1)/250.5 (52.1) | −3.5 (2.0)/256.2 (42.5) | −2.9 (1.9)/269.8 (53.0) | 0.595/1.009 | 0.554/0.370 |
| N2 amplitude (μV)/latency (ms) at F2 | −3.2 (2.1)/254.3 (53.4) | −3.1 (1.9)/258.6 (45.0) | −2.4 (1.8)/268.4 (49.0) | 1.324/0.532 | 0.272/0.590 |
| N2 amplitude (μV)/latency (ms) at C1 | −1.2 (1.7)/188.4 (49.3) | −1.4 (2.0)/201.1 (55.3) | −1.4 (1.6)/216.1 (49.5) | 0.054/1.801 | 0.948/0.172 |
| N2 amplitude (μV)/latency (ms) at Cz | −1.0 (1.6)/193.4 (57.4) | −1.0 (2.4)/181.1 (53.7) | −1.1 (2.0)/203.0 (48.6) | 0.043/1.132 | 0.958/0.328 |
| N2 amplitude (μV)/latency (ms) at C2 | −0.8 (1.5)/187.5 (56.4) | −0.8 (2.2)/185.1 (53.7) | −0.9 (1.8)/206.8 (50.1) | 0.016/1.223 | 0.984/0.300 |
| NoGo condition | |||||
| N2 amplitude (μV)/latency (ms) at F1 | −3.6 (2.1)/241.2 (34.4) | −4.2 (2.2)/259.5 (26.6) | −2.9 (2.3)/256.3 (51.1) | 2.054/1.697 | 0.135/0.190 |
| N2 amplitude (μV)/latency (ms) at Fz | −4.3 (2.2)/252.0 (30.9) | −5.0 (2.5)/257.0 (19.2) | −3.1 (2.2)/261.0 (39.3) | 4.438/0.542 | 0.015*/0.584 |
| N2 amplitude (μV)/latency (ms) at F2 | −4.0 (2.3)/256.5 (34.1) | −4.7 (2.1)/257.4 (22.1) | −2.7 (2.2)/258.3 (43.5) | 5.065/0.017 | 0.006*/0.984 |
| N2 amplitude (μV)/latency (ms) at C1 | −2.1 (2.0)/205.2 (53.4) | −2.7 (1.7)/231.7 (45.6) | −3.8 (2.3)/216.3 (39.7) | 0.947/2.143 | 0.393/0.125 |
| N2 amplitude (μV)/latency (ms) at Cz | −3.0 (3.1)/196.7 (43.8) | −3.0 (2.3)/222.0 (32.4) | −2.7 (2.9)/218.5 (35.0) | 0.120/3.477 | 0.888/0.036* |
| N2 amplitude (μV)/latency (ms) at C2 | −2.7 (2.3)/202.2 (44.8) | −2.8 (1.9)/235.2 (30.5) | −2.2 (2.3)/221.3 (33.8) | 0.521/5.347 | 0.596/0.007* |
aAnalysis of variance.
Abbreviations: HC, healthy control; IGD, internet gaming disorder; OCD, obsessive-compulsive disorder. Data are given as mean (standard deviation). *Uncorrected P < 0.05.