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Figure 5


Fig. 5. Amine-induced flight motor activity. Top traces: initial response to bath application; lower traces: expanded excerpts of electromyograms, as in Fig. 1. (A) Octopamine (500 mmol l–1), (B) dopamine (200 mmol l–1) and (C) tyramine (10 mmol l–1) all induce fictive flight, but not (D) serotonin (10 mmol l–1) or (E) the precursor amino acid tyrosine (10 mmol l–1). (F) Atropine (10 mmol l–1) blocks flight initiation by octopamine. Scale bar, 10 s upper traces, 100 ms lower traces.





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