Figure 3. Proportions of 2-day-old rabbit pups responding in an oral activation test to (A) the V-IA-F-D sub-mixture (including the more RC-typical components for humans; white bar), the single odorants V, IA, F, D (grey bars) and the RC mixture (black bar) after conditioning to V-IA-F (n = 20 pups), (B) the EA-B-D-F sub-mixture (including the less RC-typical components for humans), the single odorants EA, B, D, F and the RC mixture after conditioning to EA-B-D-F (n = 20), (C) the V-IA-D-B sub-mixture, the single odorants V, IA, D, B and the RC mixture after conditioning to V-IA-D-B (n = 16), or (D) the EA-B-F-IA sub-mixture, the single odorants EA, B, F, IA and the RC mixture after conditioning to EA-B-F-IA (n = 20).

In each group, responsiveness to the different stimuli did not differ significantly (p>0.05).