Hello, I have learned that bias_diff_off, bias_diff_on, bias_fo, bias_hpf, bias_refr have no physical units, they are just numbers that represent the deviations. I can get the absolute deviation values ​​of each parameter from Figure 1. But I still have some questions.

● Whose deviations are these parameters relative to?

● When adjusting bias_diff_off, bias_diff_on, how do I know what percentage of change in specific light intensity will trigger a positive or negative event? 

Thank you.