Table 1.
N100m source strengths and latencies (mean ± SEM) in Finnish (Fin) and German (Ger) females (F) and males (M)
| Group | LC* | LI* | RC† | RI† | IHB‡ | ▵LE§ | ▵RE¶ |
|---|---|---|---|---|---|---|---|
| Strength, nAm | |||||||
| Fin F | 29 ± 5 | 19 ± 4 | 38 ± 5 | 24 ± 4 | 1.0 ± 0.2 | ||
| Fin M | 28 ± 6 | 19 ± 4 | 51 ± 6 | 35 ± 4 | 1.1 ± 0.2 | ||
| Ger F | 29 ± 5 | 20 ± 3 | 40 ± 4 | 29 ± 3 | 1.1 ± 0.1 | ||
| Ger M | 53 ± 7 | 40 ± 6 | 49 ± 6 | 38 ± 6 | 1.1 ± 0.1 | ||
| Onset, ms | |||||||
| Fin F | 54 ± 3 | 68 ± 3 | 48 ± 2 | 62 ± 3 | 19 ± 3 | 8 ± 3 | |
| Fin M | 57 ± 2 | 62 ± 2 | 48 ± 2 | 56 ± 3 | 15 ± 3 | −1 ± 2 | |
| Ger F | 57 ± 3 | 66 ± 2 | 54 ± 2 | 66 ± 2 | 13 ± 1 | 9 ± 4 | |
| Ger M | 51 ± 3 | 63 ± 2 | 41 ± 2 | 55 ± 3 | 22 ± 2 | 4 ± 4 | |
| Peak, ms | |||||||
| Fin F | 86 ± 2 | 95 ± 2 | 84 ± 1 | 93 ± 2 | 11 ± 2 | 7 ± 2 | |
| Fin M | 84 ± 2 | 89 ± 3 | 82 ± 2 | 92 ± 2 | 9 ± 4 | 9 ± 3 | |
| Ger F | 85 ± 4 | 98 ± 3 | 84 ± 2 | 95 ± 2 | 14 ± 3 | 10 ± 4 | |
| Ger M | 87 ± 2 | 95 ± 2 | 86 ± 3 | 96 ± 2 | 10 ± 2 | 9 ± 2 | |
LC/LI, left hemisphere response to contra/ipsilateral stimulation. When the N100m response was preceded by a deflection of opposite polarity, the onset latency was measured at the zero crossing of the ascending side. The LI (in two Finnish males) and the LC (in one Finnish female) onset and peak latencies could not be obtained because the response did not exceed baseline variation (source strength set to 0).
RC/RI, right hemisphere response to contra/ipsilateral stimulation.
Interhemispheric balance of activation, IHB = (LC/LI)/(RC/RI).
Ipsi vs. contralateral latency difference for stimulation of the left ear, ▵LE = LI − RC.
Ipsi vs. contralateral latency difference for stimulation of the right ear, ▵RE = RI − LC.