Appendix 8—figure 6. The hypothesis predicts that at the preferred temperature (25°C) Drosophila R1-R6 photoreceptors can distinguish two bright dots 6.8 o apart travelling together at ~ 600 o/s.
(A) The starting and ending receptive field size (RF; ∆ρstart = 8.1o; ∆ρend = 4.0o) in all the simulation was the same. (B) in every case, the rhabdomere contracted, moving and narrowing the RF. (C) This translated light input into two clear sharp peaks. (D) Photoreceptor output separated the dots as two peaks at velocities until above 600 o/s (left, cyan background), indicating that they were neurally resolvable. At 700 o/s or higher speeds (right), the dots were not resolved as the outputs had only a single peak. Mean ± SD shown, n = 6 repeated stochastic simulations to each stimulus.