I just discovered voltage sensitive dyes technique: first of all what imaging techniques do we use? And I have seen that figures are labelled with dF/F0, what does it stands for? Thanks

Short version: I don't see what information on-centre bipolar cells are actually capturing. Longer: Actually, the question could be extended to on-centre retinal cells as well, but I'll focus on bipolar cells for now. On-centre cells will fire when a spot of light hits the centre of their rece...