TABLE 2.
ABR latencies and amplitudes
| ABR parameter | 2–3 mo | 5–6 mo | ||
|---|---|---|---|---|
| Bhmt+/+ | Bhmt−/− | Bhmt+/+ | Bhmt−/− | |
| Interpeak latency (ms) | ||||
| I–II | 0.958 ± 0.060 | 0.949 ± 0.039 | 1.014 ± 0.086 | 0.983 ± 0.150 |
| II–IV | 1.909 ± 0.151 | 1.727 ± 0.020 | 1.475 ± 0.108 | 1.628 ± 0.072 |
| I–IV | 2.867 ± 0.162 | 2.676 ± 0.054 | 2.488 ± 0.176 | 2.611 ± 0.151 |
| Amplitude (μV) | ||||
| I | 2.10 ± 0.55 | 2.24 ± 0.49 | 1.56 ± 0.21 | 1.85 ± 0.56 |
| II | 2.06 ± 0.26 | 1.961 ± 0.18 | 0.83 ± 0.42 | 2.04 ± 0.75 |
| IV | 1.53 ± 0.37 | 1.846 ± 0.21 | 1.36 ± 0.34 | 1.19 ± 0.28 |
Interpeak latencies and amplitudes of ABR waves in response to 70 dB SPL click stimulation in Bhmt+/+ and Bhmt−/− mice of 2–3 (n = 5–6 per genotype) and 5–6 (n = 4 per genotype) mo of age. Data are expressed as means ± sem.