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Fig. 3. Responses of a Type I-like neuron to water onset and to 2-s odorant pulses
of standard tetramin and three serial 10-fold dilutions thereof, delivered as
indicated by the routine shown below trace D. (A) Standard tetramin diluted
1000-fold; (B) standard tetramin diluted 100-fold; (C) standard tetramin
diluted 10-fold; (D) standard tetramin. (E) Relationship between spike
responses and the relative odor concentration. Each point is the mean ±
1 S.E.M. of five stimulus presentations. The straight line
relationship is a graph of the equation
y=a(log10x)+b, where a=1.55 and b=8.3. The
correlation coefficient of the relationship is 0.95.