Figure 6.

Lamina neurons differentially contribute to temporal visual processing. (A) (left) Space-time depictions of reverse-phi and standard motion stimuli. (right) Example steering responses to clockwise rotation of standard and reverse-phi motion stimuli (λ = 30°, 12 Hz). (B) (left) Silencing C3 neurons increases the rate of the reverse-phi inversion. Time series are flight steering responses (mean ± s.e.m.) to rotation of a reverse-phi motion stimulus (90° spatial period) at three speeds. (right) Mean integrated turn amplitude (± s.e.m.) for cases in which silencing a class of lamina neurons increased reverse-phi inversion. The arrowhead marks the start of the reverse-phi inversion (see primary text). (C) Same as in B, except for cell types that eliminate the reverse-phi inversion.