Fig. 3
The response of Imc neurons for variation intensity single-target protocol (VISP). In the figure, ellipses represent the receptive fields of recorded Imc neurons, and squares indicate moving targets. The relative size of squares reflects the relative size in stimuli, the grayscale of squares represents contrast—darker colors indicate lower contrast (contrast experiments); A, Diagram of VISP, conventions are as in Fig. 2A; B, D, Raster plot of responses of the example Imc neuron to A protocols (the intensity variable of the object is the size). Conventions are as in Fig. 2B, D. Pos-S1 = 0.9° in B, Pos-S1 = 0.6° in D; C, E, PSTH of neurons to A protocols. Conventions are as in Fig. 2C, E. Response firing rates corresponding to raster plots in B, D and F, Response mean firing rates corresponding to raster plots in (B) (red data) and (D) (purple data) during the post segment (black bar), correlation coefficient of responses versus size of the previous stimulus intensity is 0.78 (Pos-S1 = 0.6, p = 0.03, Pearson correlation test), 0.84 (Pos-S1 = 0.9, p = 0.01, Pearson correlation test); G, H, The response means of the post segment of each neuron are contrasted when the Pre-S1> Pos-S1 (Strong Pre-S1) and Pre-S1< Pos-S1(Weak Pre-S1), G for different sizes of stimuli (p < 0.001, n = 143, Wilcoxon signed-rank tests), H for different contrast stimuli (p<0.001, n = 40, Wilcoxon signed-rank tests).
