Table 2.
Mismatch negativity potential amplitudes and latencies
Variable | Subclinical ADHD group (n = 13) | ADHD group (n = 16) | Z | pvalue |
---|---|---|---|---|
MMN amplitude (µV) | ||||
Fz | −4.97 ± 1.81 | −4.16 ± 1.53 | −1.49 | 0.136 |
FCz | −4.90 ± 2.32 | −3.54 ± 1.23 | −2.11 | 0.035 |
Cz | −2.90 ± 1.64 | −2.23 ± 1.25 | −1.14 | 0.254 |
CPz | −2.45 ± 1.15 | −1.93 ± 1.38 | −1.40 | 0.161 |
MMN latency (ms) | ||||
Fz | 208.84 ± 34.89 | 243.94 ± 23.89 | −2.48 | 0.013 |
FCz | 209.00 ± 31.67 | 239.88 ± 24.72 | −2.57 | 0.010 |
Cz | 205.31 ± 30.34 | 215.13 ± 37.51 | −0.86 | 0.392 |
CPz | 201.69 ± 31.07 | 210.31 ± 41.94 | −0.79 | 0.430 |
Values are presented as mean ± standard deviation.
ADHD, attention deficit/hyperactivity disorder; MMN, mismatch negativity; Fz, frontal electrode; FCz, fronto-central electrode; Cz, central electrode; CPz, centro-parietal electrode.