Fig 6. Lactisole sweet water taste is unaffected by prior sweet receptor activation.

Log₁₀ sweetness ratings are shown for solutions of (a) sucrose and (b) neotame sampled with the tongue tip in 4 conditions: Suc or Neot + Lac: a still lactisole + sweetener mixture (white bars); Lac→Suc or Neot: a still solution of lactisole before a still solution of the sweetener (gray bars); Suc or Neot + Lac → H₂O: a still sweetener + lactisole mixture followed by a flowing water rinse (hatched white bars); and Lac→Suc or Neot→H₂O: a still solution of lactisole before a still solution of the sweetener followed by a flowing water rinse (hatched gray bars). Shown for comparison is the SWT produced by a flowing water rinse after lactisole alone (dashed line). Vertical bars are the standard errors of the log₁₀ means (SEMs).