10/01/2017
"A clue that dogs have learned a simple discrimination solution during pseudo-MTS training, at the expense of learning about the matching relationship, involves avoidance of the scent sample when it is presented. Although novice dogs actively sniff the scent sample, a common observation among dogs trained with pseudo-MTS arrangements is resistance to scent sample presentation. Some speculation of why dogs resist scent sample presentation, assumes the scent sample is offensive when it is held under a dog’s nose. However, an alternative explanation of the change in behavior, from initial attention to subsequent resistance, is that dogs initially notice the scent sample but during pseudo-MTS training, more readily acquired simple discrimination solutions overshadow learning about the matching relationship between the scent sample and matching comparison. That is, during pseudo-MTS training, dogs learn the scent sample is redundant. They learn the scent sample does not signal anything that is not already perfectly predicted by the simple discrimination solutions not controlled against. Thus, dogs learn to ignore the scent sample, which retards learning about the matching relationship."
Here transfer performance is contrasted with baseline training performance to determine whether a relational solution strategy is learned from the systematic pseudo matching-to-sample procedures commonly used to train human-scent-matching dogs. Evidence indicates that due to the lack of constraints…