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. 2018 Nov 14;9:1606. doi: 10.3389/fphys.2018.01606

FIGURE 2.

FIGURE 2

Typical recordings from the tarsal gustatory sensilla showing spike trains evoked in the tarsal gustatory receptor neurons (GRNs) of TIα, TIβ, and TII sensilla associated with the fifth tarsomere of female S. littoralis. (A) Electrical identification of four GRNs according to spike amplitudes in response to the electrolyte (up) and the wave forms of (N1-4) separately and all activated neurons (N1, N2, N3 and N4) together (down). (B–D) Example recordings from TIα, TIβ and TII sensilla to 10 mM NaCl, 10 mM sucrose, 1.0 mM caffeine and 0.1 mM quinine, respectively and examples of spike analyses of the responsive GRNs with 10 mM sucrose (Scale bars: 100 ms in A; and 200 ms in B–D).