Table 1.

Student's t-test p-values for Figs. 1–4, for minimum signal intensity values below 1.0, in each plot. (NS = not significant; p-value calculations are present in the Excel files, represented by each figure, in the SOM)

Figure	p-value
1A	9.30 E-08
2A	2.43 E-12
3A	0.026
3C	NS
4A	3.66 E-09
4C	0.0002