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. Author manuscript; available in PMC: 2014 Jul 10.
Published in final edited form as: Neuron. 2013 Jul 10;79(1):111–127. doi: 10.1016/j.neuron.2013.04.029

Figure 9. Responses to translational and rotational motion utilize different input architectures.

Figure 9

(A–H): Normalized average forward walking speed for front-to-back (A,C,E,G) and back-to-front motion (B,D,F,H). The stimulus was presented at a contrast frequency of 6 Hz for all panels. Genotypes and schematics are shown to the left. Number of flies run per genotype is indicated in parentheses. Gray bar denotes the motion epoch. The Gal4(1)+Gal4(2)>shits experimental traces are always displayed in blue, UAS-shits/+ controls in green and Gal4(1)+Gal4(2)/+ controls in red. Dashed lines (light blue and magenta) indicate the mean forward walking speed for the corresponding single silencing controls. The bar plots show integrated responses over a 250 ms window beginning 80 ms after stimulus onset. *p<0.05 tested using two-tailed t-tests against both controls. Shading around mean traces and error bars denote +/− 1 SEM. (I) A schematic summarizing how different combinations of input channels contribute to edge detection and modulate turning and forward walking behavior. See also Figure S9.