a positive trendp < 0.001
In the range examined here, there is a slight effect of pH on burst frequency; with a positive trend in frequency, pH becomes acidic ( Fig. 3 , D and G ; R 2 = 0.009, p < 0.001, linear regression).
In the range examined here, there is a slight effect of pH on burst frequency; with a positive trend in frequency, pH becomes acidic ( Fig. 3 , D and G ; R 2 = 0.009, p < 0.001, linear regression).