Variation in baseline controlling relations is suggested as one of the factors determining variability in stimulus equivalence outcomes. This study used single- comparison trials attempting to control such controlling relations. Four children learned AB, BC, and CD conditional discriminations, with 2 samples and 2 comparison stimuli. In Condition…

Adults can rapidly learn artificial phonotactic constraints such as /"f"/ "occurs only at the beginning of syllables" by producing syllables that contain those constraints. This implicit learning is then reflected in their speech errors. However, second-order constraints in which the placement of a phoneme depends on another…

One group of undergraduates responded under a fixed-ratio (FR) 25 schedule and a second group responded under a differential-reinforcement-of-low-rate (DRL) 5-s schedule (first history phase). Both groups of subjects were then exposed to a differential-reinforcement-of-other-behavior (DRO) 5-s schedule (second history phase), and finally to…

Galvanic skin conductance response, respiration rate and respiration depth values of an experimental and control group were used to test the hypotheses of a Albert Ellis' ABC Theory of psychopathology. (EK)

Classification "rules" in expert and everyday discourse are usually deficient by formal standards, lacking explicit decision procedures and precise terms. The authors argue that a central function of such weak rules is to focus on perceptual learning rather than to provide definitions. In 5 experiments, transfer following learning of family…

THIS STUDY FOCUSED ON THE GENERAL PROBLEM OF HOW THE TOTAL EFFECT OF A MULTIDIMENSIONAL STIMULUS IS COMPOUNDED FROM THE SIMPLE EFFECT OF ITS SEPARATE COMPONENTS IN THE CONTEXT OF STIMULUS GENERALIZATION. FROM A THEORETICAL LEVEL, THE PROBLEM WAS STUDIED IN TERMS OF THE GEOMETRY OF MINKOWSKI. AN EXPERIMENT WAS CARRIED OUT WITH 20 SUBJECTS WHO WERE…