The administration of the dopamine antagonists, pimozide and α-flupenthixol, to rats
reduced Pavlovian–instrumental transfer when a conditioned stimulus (CS) that had been …

Here we attempted to clarify the role of dopamine signaling in reward seeking. In Experiment
1, we assessed the effects of the dopamine D1/D2 receptor antagonist flupenthixol (0.5 …

Two experiments compared the effects of Pavlovian stimuli and incentive learning on the
performance of a heterogeneous chain of instrumental actions. Using a Pavlovian …

In 5 experiments the role of incentive learning in instrumental performance following a shift
in primary motivation was examined. In Exps 1 and 2, rats trained to perform an instrumental …

In three experiments that used appetitive preparations with rats, we examined the effects of
reinforcing a compound consisting of two previously reinforced stimuli on subsequent …

In a transfer-of-control experiment with rats, Pavlovian CSs were tested for the specificity of
their effects. The instrumental behavior consisted of a discriminative, conditional two-lever …

Instrumental behaviour is controlled by two systems: a stimulus–response habit mechanism
and a goal-directed process that involves two forms of learning. The first is learning about …

Pavlovian-to-instrumental transfer tests were used to assess the sensitivity of Pavlovian
stimulus-outcome (SO) associations to various extinction treatments in four appetitive …

In two experiments hungry rats received extensive training to lever press for food outcomes
before one outcome was devalued by aversion conditioning and responding tested in …

Hungry rats were rewarded for pressing a lever on a multiple schedule. During one
component the reward was a sucrose solution, whereas food pellets acted as the reward …