Extended Data Fig. 9: Spatio-temporal receptive fields mapped with ON- and OFF-impulses and maximally excitatory stimuli.
From: Connectome-constrained networks predict neural activity across the fly visual system
(a) Spatiotemporal receptive fields for motion detector neurons agree with experimental measurements (Gruntman et al.27). (b) Spatio-temporal receptive field mapping with single ommatidium OFF-impulses. (c) Maximally excitatory stimuli and baseline-subtracted responses. Including full-field naturalistic, regularized naturalistic, artificial, and moving edge stimuli and responses. Moving edge angle and speed maximize the central cell peak response. Artificial stimuli are optimized from initial noise to maximize the central cell activity using gradient ascent plus full-field regularization towards grey. The last row shows the baseline-subtracted central cell responses. Peak central cell responses at time point zero.
