Fig. 8.
Preference for the activation of specific subsets of NPF neurons. (A) Intersection of the NPF-LexA and NPFR-GAL4 drivers, yielding expression in only the big (L1-l + P1) NPF neurons. (B) The ss0020 split-GAL4 line labels a subset of P2 NPF neurons. Brains were imaged from posterior to anterior. Magenta: endogenous NPF. Green: CsChrimson::mVenus. (C) Activation of neither the big (L1-l + P1) nor P2 NPF neurons is sufficient to recapitulate the effect of activating all NPF neurons [n = 14–15; one-way ANOVA followed by Tukey's test. **P < 0.01] (frequency of activation, 40 Hz; 617-nm LED light intensity, 20 μW/mm2). (Magnification: 20×.)