Table 1.
Peak amplitude (μV) and peak latencies (ms) of the P300 component in ‘pre’ and ‘post’ alternate nostril yoga breathing (ANYB) and breath awareness (BAW) (n = 20)
|
Electrode site† |
Variables |
ANYB |
BAW |
||||
|---|---|---|---|---|---|---|---|
| Pre | Post | Cohen's d | Pre | Post | Cohen's d | ||
| Fz |
Amplitude (μV) |
4.14 ± 2.81 |
7.37*** ± 4.82 |
0.85 |
4.36 ± 3.12 |
5.52 ± 3.84 |
0.33 |
| Latency (ms) |
355.75 ± 26.26 |
336.65* ± 27.82 |
0.72 |
351 ± 28.43 |
352.75 ± 20.82 |
0.07 |
|
| Cz |
Amplitude (μV) |
6.22 ± 5.59 |
10.06*** ± 6.21 |
0.65 |
6.55 ± 5.27 |
8.82* ± 5.10 |
0.44 |
| Latency (ms) |
359.85 ± 33.34 |
352.65 ± 26.18 |
0.24 |
356.55 ± 25.54 |
353.70 ± 31.57 |
0.10 |
|
| Pz |
Amplitude (μV) |
8.11 ± 4.96 |
11.12*** ± 5.37 |
0.58 |
8.55 ± 6.38 |
10.62 ± 5.52 |
0.35 |
| Latency (ms) | 355.80 ± 32.02 | 346.95 ± 28.61 | 0.29 | 359.70 ± 20.09 | 354.30 ± 31.81 | 0.21 | |
***P < .001, **P < .01, *P < .05 Bonferroni adjustment ‘Post’ compared with respective ‘Pre’ values† Reference: Linked ear lobes.
Values are group mean ± SD.