Findings were: it did not matter whether the seriation involved the hues used in subsequent tasks or other hues; the presence or absence of reinforcement during perceptual pretraining did not affect pretraining, training, or transposition behavior; and seriation pretraining produced increased transposition in the intermediate-hue problem.…

Children often perseverate, repeating prior behaviors when inappropriate. This work tested the roles of verbal labels and stimulus novelty in such perseveration. Three-year-old children sorted cards by one rule and were then instructed to switch to a second rule. In a basic condition, cards had familiar shapes and colors and both rules were stated…