Fig. 6. Effect of the anesthetic F3 on acetylcholine-induced currents in oocytes expressing human neuronal nicotinic acetylcholine receptors:α2β4( top ), α3β4( middle ), and α4β2( bottom ). For experimental details, see legend to figure 5 . Values are mean ± SE from 5 oocytes to 8 oocytes. Error bars not visible are smaller than symbols.