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. Author manuscript; available in PMC: 2010 Apr 6.
Published in final edited form as: J Neurogenet. 2009;23(4):366–377. doi: 10.3109/01677060903085722

Figure 4.

Figure 4

Serotonin causes an offset in the responses of PNs. (A) The DM2 and VM2 glomeruli (hatched white outline) and responses of these glomeruli to alcohols of increasing carbon chain length; C-6=3-hexanol, C-7=3-heptanol, C-8=3-octanol, C-9=3-nonanol, and C-10=3-decanol. (B) 5HT causes an offset of the odor-tuning curve of DM2 PNs. Responses to C-8 and C-9 were significantly higher in flies exposed to 5HT, compared to control flies (n=11 and 9, respectively; *P <0.05; **P <0.01). (C) Responses measured from the VM2 to C-7 were significantly higher in flies exposed to 5HT, compared to control flies (n=11 and 9, respectively; *P <0.05). Data in B and C are represented as mean±SEM. Scale bar=10 μm.