Iirc the rods that see in grayscale but are good at light perception, have quicker response than cones that do color vision. However, rods are most engaged in low-light conditions, which here is true for the frog, so this part kinda contradicts the response time hypothesis.
Iirc the rods that see in grayscale but are good at light perception, have quicker response than cones that do color vision. However, rods are most engaged in low-light conditions, which here is true for the frog, so this part kinda contradicts the response time hypothesis.
I think the point is that there’s enough light around the center void circle to bypass that. I’m not that versed in this illusion tho.