Exemplars used
| Pair 1 | Pair 2 | Pair 3 | ||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| Odor | Cloves | Nutmeg | Thyme | Paprika | Cinnamon | Cumin |
| Medium | Wood shavings | Sawdust | Stone chips | Wood beads | Leaf tea | Ground tea |
| Texture | Velvet pile | Reversed velvet | Waxed paper | Grained paper | Fine sandpaper | Coarse sandpaper |
The exemplars within a dimension were presented in pairs and varied such that no two animals within a group received the same discriminations, but the shifts performed by each lesioned rat were matched by those of a control rat.