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Figure 5


Fig. 5. Dose–response and arousal time-courses used for simulation modeling of male N. succinea swimming responses to CSSG. (A) Dose–response relationship for speed arousal. The equation used was speed=50+(180–50)/{1+10^[(–7–log[CSSG])*0.6]}. (B) Time-course of arousal and duration of the response, as a percentage of the maximum response to the encountered CSSG stimulus. The equation used was %=130*[1–EXP(–time)]^3*EXP(–time/20). (C) Dose–response relationship for turning arousal. The equation used was angle s–1=(750)/{1+10^[(–7–log[CSSG])*0.6]}. (D) Time course of arousal and duration of the turning response, as a percentage of the maximum response to the encountered CSSG stimulus. The equation used was %= 100*[1–EXP(–time/0.05)]^3–[1–EXP(–time/0.05)]*[1–EXP(–time/0.5)]^25. The preceding formulae are written with Excel spreadsheet functions and operators, where EXP() means e raised to the power in the parentheses, ^ means exponential and * means multiplication.





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