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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)

From: Changes in P300 following alternate nostril yoga breathing and breath awareness

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

  1. ***P < .001, **P < .01, *P < .05 Bonferroni adjustment ‘Post’ compared with respective ‘Pre’ values† Reference: Linked ear lobes.
  2. Values are group mean ± SD.