Investigated simultaneous occurrence of emergent stimulus-response relations (functional equivalence) and stimulus-stimulus relations (stimulus equivalence). Trained 4- and 5-year olds to emit specified responses to pairs of stimuli in one setting (original training) and to emit other responses to one member of each pair in another setting…

Whisker deflection is an effective conditioned stimulus (CS) for trace eyeblink conditioning that has been shown to induce a learning-specific expansion of whisker-related cortical barrels, suggesting that memory storage for an aspect of the trace association resides in barrel cortex. To examine the role of the barrel cortex in acquisition and…

THE PRIMARY PURPOSE OF THIS DISSERTATION IS TO DEVELOP A STRUCTURAL THEORY, ALONG FACET-THEORETIC LINES, FOR THE PERCEPTION OF MORSE CODE SIGNALS AND RELATED RHYTHMIC PATTERNS. AS STEPS IN THE DEVELOPMENT OF THIS THEORY, MODELS FOR TWO SETS OF SIGNALS ARE PROPOSED AND TESTED. THE FIRST MODEL IS FOR A SET COMPRISED OF ALL SIGNALS OF THE…

Mothers of 48 infants approximately 12 months old displayed either positive or neutral affect while their infants responded to pleasant, ambiguous, or aversive toys. On the first trial maternal affect had no effect; on the second trial, positive maternal affect resulted in more positive infant responses, but only for the ambiguous toy. (Author/RH)

INTERORD executes in the interactive mode by presenting pairs to be judged at a remote terminal. The respondent at the terminal judges which one of the objects dominates the other. INTERORD utilized the observed dominance relations to determine which additional relations are implied by the transitivity principle. (Author/RC)

All mathematical feature selection techniques can be classified into one of two major categories--feature selection in the measurement space and feature selection in the transformed space. This article discusses the various feature selection techniques in the light of this two-category classification. (Author/HB)

The primary objective of the proposed research was to investigate the effects on learning of various stimulus-response (S-R) mapping schemes. It was hypothesized that S-R connections are not simply arbitrary, that the way stimulus and response classes are mapped together may have a profound effect on learning rate. To study this problem, two…

Pigeons were trained to respond to stimuli from a continuous stimulus dimension (tonal frequency) with response values from continuous response dimension. Both the number of points of correspondence and problem difficulty were varied. Following training, subjects were tested with stimulus values intermediate to those trained. During these test…

Article describes a study in stimulus-sampling that now makes it possible for the theory to account for the increased resistance to extinction following partial reinforcement. (Author/ML)

In free word association lists administered to children and adolescents 3 times at 1-year intervals, idiodynamic associative sets remained stable, though specific words did not. (MH)

The classifying behavior of five-year-old children and adults was examined in two studies of restricted classification using triads of stimuli composed of the dimensions of length and density. Results were consistent with the notion of separable perception for adults and integral perception for children. (Author/SS)

When college students attempted to integrate multiple cues into a single value judgment, the resulting cognitive load did not simplify cue-judgment relationships. Cue values were translated into judgment-relevant subjective values before integration. Findings support the information integration theory. (Author/CP)