Appendix 6—figure 5. Object motion blur according to the classic theory, applied to the neural images in the Drosophila eye as it was thought to affect them in the past.

(A) Hypothetical spatial pattern of an instantaneous voltage response at an ommatidial array produced by a moving point-object. Figure redrawn from (Srinivasan and Bernard, 1975). (B) Spatial half-width of neural image of a moving point-object as a function of its speed in Dim and Bright conditions. For all the tested speeds, S_hdc were significantly smaller than S_wild-type (p = 0.0036–0.049, t-test), except for 205°/s in Bright condition, where the statistical test yielded p=0.137. S was calculated using data at 19°C. Mean ± SEM, n_wild-type = 4–15, n_hdc = 3–16, two-tailed student test.