Table 2.

Exemplars used

Pair 1Pair 2Pair 3
MediumWood shavingsSawdustStone chipsWood beadsLeaf teaGround tea
TextureVelvet pileReversed velvetWaxed paperGrained paperFine sandpaperCoarse 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.