Fig. 7. Temporal changes in the rate of oscillation of the ventral nerve cord (VNC) of P. unipuncta following application of Manse-AT or 5-HT in saline, independently or concurrently, at t=0 to semi-isolated VNC of adult virgin day-3 females at concentrations approximating their EC₅₀ values. Data are expressed as percentage increase in the resting rate and values are means ± S.E.M. (N=5 or more samples). ^*Significant increase from resting rate (P<0.05).