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Fig. 3. (A) Average dose–response curves for quinine and sinigrin obtained
during 5 s recordings from single s. chaetica. The average response to the
electrolyte 0.01 mol l–1 KCl is indicated as a reference. (B)
Average temporal response patterns for KCl, quinine and two concentrations of
sinigrin, counted in 0.5 s bins in 75 s. chaetica during 5 s recordings.
Whereas 100 mmol l–1 sinigrin elicited a high-response
frequency very shortly after application, responses to 1 mmol
l–1 quinine were bursts of activity distributed over the
whole 5 s recordings. Different letters indicate significant between-group
differences. The dotted areas show tests within the first and the third time
bin, respectively. Letters behind the captions in B indicate differences
between the average spiking activity during 5 s (Scheffé tests after
ANOVA, P<0.01).
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