The present research evaluated the refractorylike response decrement, as found in habituation of auditory evoked peripheral vasoconstriction in rabbits, to determine whether or not it represents a short-term habituation process distinct from effector fatigue or sensory adaptation. (Editor)

The major question of interest in the present investigation was whether or not a UCS is more effectively represented in STM when its occurrence is relatively surprising as opposed to expected. (Author)

Visual memory in monkeys was examined under four different conditions, each with a separate group. (Editor)

The results of this study suggested that size change may contribute to the forgetting of events occurring late in development, but that neurological immaturity may underly the forgetting of earlier events. (Editor/RK)

The research reported here was directed at evaluating whether or not the effectiveness of a Pavlovian unconditioned stimulus (US) in promoting associative learning is reduced if the US is shortly preceded by another occurrence of the same US. (Author)

Several experiments tested the occurrence of the "Kamin effect", i.e., the deficit in performance of an incompletely learned avoidance task, in terms of discrimination (choice) behavior by rats. (Editor/RK)

Repeated, isolated presentations of a stimulus typically reduce the subsequent ability of that cue to become an effective conditioned stimulus. This phenomenon is known as the latent inhibition effect. Four experiments investigate this effect. (Editor/RK)

A delayed matching-to-sample (DMTS) task was used to test several hypotheses about sources of retroactive inhibition (RI) in pigeon short-term memory. (Editor)

Grant and Roberts found that houselight presented throughout the delay period on a delayed matching-to-sample task caused pigeons to demonstrate a much lower level of accuracy than was found when the delay was spent in darkness. A series of experiments was carried out to examine possible mechanisms responsible for this light-induced retroactive…

Investigates the nature of the rhythmic process mediating multiple retention deficits in rats, i.e., whether it was induced by a training procedure or based on a pre-existing physiological rhythm. Also concerns the mechanism of the rhythm's effect on retention performance, whether it affects performance factors per se or the retrieval of prior…

This research used tasks analogous to Delayed Matching-to-Sample tasks to study pigeons' Short Term Memory for responses and reinforcers, as well as for more conventional stimuli. The broad question is whether stimulus, response, and reinforcer memories are all influenced in the same way by the same independent variables. (Author/RK)

Investigates memory capacity in rats for information about spatial location and provides information about some of the characteristics of the storage process used in this memory. (Author/RK)