Fig. 10. Representative recording of the basolateral membrane voltage (V_b) in a principal cell challenged separately and together with 100 nmol l^–1 Anoga-DH₃₁ and 100 nmol l^–1 Musdo-K. Anoga-DH₃₁ depolarises and Musdo-K hyperpolarises V_b, but in combination they produce a triphasic response mimicking that obtained with Anoga-DH₄₄ (cf. Fig. 7A). Horizontal bars indicate when the peptides were present in the bath. Arrows show when the principal cell was impaled (downward arrow) and the microelectrode withdrawn (upward arrow).