Figure 5.

Time evolution of responses to P_D and P_V^c stimulation. A, Responses (i.e., baseline-subtracted firing rates) of 367 isolated putative neurons (dots) in 35 ganglia to stimulation of a P_D neuron (x-axis) or the contralateral P_V neuron (P_V^c) (y-axis). Panels represent consecutive 0.5-s-wide windows. Units positively identified as DE-3 neurons ipsilateral to the P_D neuron are colored red (n = 11); contralateral blue (n = 14). B, Units that responded to both P_D and P_V^c stimulation classified by the signs of their responses as a function of time. Red represents units with firing rate upregulated by P_D stimulation and downregulated by P_V^c stimulation. Black represents units downregulated by both. Gray represents units upregulated by both. Blue represents units downregulated by P_D stimulation and upregulated by P_V^c stimulation. (Numbers do not add up to 100% because only units that, in a given time window, had firing rates >0.5 SD different from their baseline in both P_D and P_V^c conditions are included in this graph.) Inset, How the various regions in the panels in A are represented in B. White indicates regions not represented. C, Units that responded to either P_D or P_V^c stimulation with a firing rate increase classified by the ratio of those increases (“D:V”). (Numbers do not add up to 100% because only units are included that, in a given time window, had firing rates >1 SD above their baseline in at least one of the two stimulus conditions.) Inset, How the various regions in the panels in A are represented in C. White indicates regions not represented.