The relative effectiveness of secondary reinforcers throughout deprivation and habit-strength parameters.

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Abstract
Male albino and hooded rats in a Skinner box, were tested for extinction after training under varied conditions of reinforcement. The secondary reinforcer was the click of the pellet magazine and the flash of a light. All animals extinguished with the secondary reinforcers present took longer to extinguish than did animals extinguished without the secondary cues. Rats given uniform reinforcement during training and extinguished under varying degrees of deprivation, with and without secondary reinforcers, also took longer for extinction in the presence of secondary reinforcement through the whole deprivation range. "It is concluded that the proportion of extinction responses attributed to the secondary reinforcers was relatively constant throughout both the habit-strength and deprivation parameters.".
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