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. Author manuscript; available in PMC: 2006 Apr 19.
Published in final edited form as: Chem Senses. 2005 Dec 21;31(3):197–206. doi: 10.1093/chemse/bjj017

Figure 3.

Figure 3

Cl− ions carried the majority of the IF-elicited response. (A) NA (300 μM), a chloride channel blocker, in the APS was used to block Cl− channels. A single OSN was stimulated by IF with a 11-step protocol. Only the current trace at −100 mV is shown. The cell was tested in APS first, then with NA, and washed back with APS. The IF response recovered with wash (not shown). (B) NA blocked the potentiation of the IF response under the single-voltage-pulse protocol. The peak Iin increased with repetitive recordings in APS (solid circle). In the presence of NA, the majority of the Iin values elicited by IF disappeared, and the increase of Iin was blocked (open circle) (n = 5). (C) Dual-step protocol with NA did not restore IF potentiation with the same cells as B after a 5-min rest (n = 5).