Researchers have proposed that an explicit reasoning system is responsible for learning rule-based category structures and that a separate implicit, procedural-learning system is responsible for learning information-integration category structures. As evidence for this multiple-system hypothesis, researchers report a dissociation based on…

The possibility that subjective contours are an artifact of brightness contrast was explored. Concludes that subjective contour and brightness contrast are distinct perceptual phenomena but share a dependency on the processing of edge information transmitted through the achromatic channels of the visual system. (Editor/RK)

In a series of three experiments on the role of memory in solving attribute-identification problems, the subjects did or did not have to remember their response and/or the stimulus for processing during any given intertrial interval. (Editor)

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)

Describes three experiments which investigated the mechanism underlying memory for movement-extent cues in preselection. Experiment 1 showed that memory for movement extent was better for subjects who were allowed to preselect their own standard. Experiments 2 and 3 examined the role of active movement in preselected and nonpreselected movements.…

Considers listener expectancies based on timing redundancy in continuous speech and the interaction between the effects of segmental and suprasegmental cues during ongoing perception. (Editor/RK)

The major experimental question, does the double-bind produce anxiety, was asked in the context of the double-bind unit, rather than the more complicated double-bind process, i.e., as it affects one person rather than as it affects both parties involved in a mutual interaction. (Author/RK)