Table 4.
Mean and standard deviation values for MMN and P3a cortical auditory evoked potential latencies and amplitudes elicited by deviant harmonic tones (HMD 1.5 and HMD 6) from older and younger musicians and nonmusicians.
| MMN | P3a | ||||
|---|---|---|---|---|---|
| Latency (ms) | Amplitude (microvolts) | Latency (ms) | Amplitude (microvolts) | ||
| Older nonmusicians | HMD 1.5 | 298 (15) | −1.1 (1.3) | 330 (20) | −0.06 (1.3) |
| HMD 6 | 200 (19) | −1.62 (0.9) | 283 (13) | 0.81 (1.1) | |
|
| |||||
| Older musicians | HMD 1.5 | 238 (12) | −1.26 (0.5) | 314 (18) | −0.18 (0.8) |
| HMD 6 | 172 (15) | −2.6 (1.7) | 251 (16) | 0.19 (1.5) | |
|
| |||||
| Younger nonmusicians | HMD 1.5 | 219 (18) | −1.90 (1.1) | 297 (14) | 0.43 (1.5) |
| HMD 6 | 183 (12) | −3.44 (1.4) | 265 (16) | 1.47 (1.4) | |
|
| |||||
| Younger musicians | HMD 1.5 | 213 (14) | −2.21 (1.3) | 284 (14) | 0.20 (1.3) |
| HMD 6 | 163 (15) | −2.63 (1.5) | 259 (15) | 2.04 (1.6) | |