GFP peak amplitude and latenciesa
| Group | L-1 ms | L-0.4 ms | Bil-0 | R-0.4 ms | R-1 ms | |
|---|---|---|---|---|---|---|
| Amplitude (μV) | ||||||
| P1/Pci | Normal hearing | 2.90 ± 0.26 | 2.94 ± 0.22 | 3.31 ± 0.21 | 2.87 ± 0.19 | 2.94 ± 0.21 |
| Bilateral CIs | 4.29 ± 0.39 | 4.29 ± 0.37 | 4.07 ± 0.28 | 4.33 ± 0.28 | 3.92 ± 0.25 | |
| N2 | Normal hearing | 4.03 ± 0.24 | 3.99 ± 0.36 | 4.21 ± 0.37 | 3.98 ± 0.36 | 3.88 ± 0.25 |
| Bilateral CIs | 6.76 ± 0.43 | 6.71 ± 0.54 | 6.50 ± 0.59 | 6.54 ± 0.52 | 6.92 ± 0.49 | |
| Latency (ms) | ||||||
| P1/Pci | Normal hearing | 98.00 ± 3.02 | 95.00 ± 2.37 | 96.50 ± 3.37 | 96.81 ± 2.21 | 99.19 ± 2.40 |
| Bilateral CIs | 99.63 ± 3.31 | 101.63 ± 3.01 | 100.13 ± 3.68 | 99.00 ± 3.25 | 102.44 ± 4.12 | |
| N2 | Normal hearing | 233.19 ± 13.92 | 219.75 ± 10.87 | 226.88 ± 12.81 | 233.69 ± 15.67 | 216.06 ± 9.32 |
| Bilateral CIs | 216.44 ± 6.28 | 222.19 ± 8.88 | 212.25 ± 6.31 | 219.13 ± 5.76 | 217.00 ± 4.90 |
↵aData are mean ± SE. Children with CIs had significantly higher GFP amplitude for Pci and N2 peaks compared with children with normal hearing (p < 0.001). Peak latencies did not differ by group (p > 0.05). R, right leading conditions; L, left leading conditions; Bil-0, simultaneous onset of bilateral stimuli; 0.4 and 1 ms, ITDs at stimulus onset.