Fig. 5. Dose–response relationships for two physiological ORN types at five different odor concentrations. (A) Responses from sbtII-2A neurons to four different odor stimuli. (B) Responses of i-1A neurons to decanal. A and B show net responses to stimuli, after subtraction of the spontaneous activity. Examples of electrophysiological activity of a sbtII-2A neuron at five doses of octanal (C-G) and nonanal (H-L). Error bars show standard deviation.