Fig. 4.

Fig. 4.

Spectrally tuned responses and anatomical distributions. ΔF/F₀ heatmaps, spectral identity, and anatomical distributions of neurons selected for spectrally tuned responses above the threshold for UV (a–c), violet (d–f), blue (g–i), and red (j–l) stimuli. See Fig. 3 for the general panel description. a, d, g, j Data from the same 5-dpf larva used for Fig. 3 but with neurons ranked based on L₁, L₂, L₃, and L₄ responses, respectively, as shown by the leftmost column. Data from all seven 5 dpf larvae, displaying neurons that passed selection criteria (threshold and peak analysis) for on L₁ (b, c), L₂ (e, f), L₃ (h, i), and L₄ (k, l) responses, respectively. Anatomical distributions of all responsive neurons (b, e, h, k), preferred response wavelength, and anatomy are shown (c, f, i, l). Scale bar, 190 μm