According to the composite-stimulus control model (Weiss, 1969, 1972b), an individual discriminative stimulus (S[superscript D]) is composed of that S[superscript D]'s on-state plus the off-states of all other relevant S[superscript D]s. The present experiment investigated the reversibility of composite-stimulus control. Separate groups of rats…

Purpose of the present research was to determine whether certain Pavlovian conditioning phenomena occur in a simple probability learning situation. (Authors)

Examines the effects of different-intensity unconditioned stimuli as well as generalization to related and unrelated test words. Its results indicate that semantic generalization is not a consequence of mediated generalization as traditionally conceived. (Editor/RK)

In earlier studies with rats, the effectiveness of the auditory element of a tone--light discriminative stimulus was enhanced when the conditioned incentive value of the compound was negative rather than positive. The present experiment systematically replicated these results in pigeons trained to press a treadle in the presence of a tone--light…

The combined theories of cue summation and stimulus generalization provide the theoretical model for this study. First, the study attempted to determine if supplementing a theoretical presentation of rhetorical principles with printed, audio, and audiovisual speech models would contribute to a significant increase in learning as evidence by…

This publication reports on research which has investigated phoneme acquisition and carry-over in a programmatic fashion. This research began with investigations of the effect of an extension of stimulus control of new phoneme responses through a systematic operant procedure. After quantifying the effect of such procedures in terms of stimulus…

While studies in learning and verbal behavior show that learning comes through paired-associate problems, they do not explain the acquisition of language. Three paradigms demonstrate mediation effect in paired-associate learning: response equivalence, stimulus equivalence, and chaining model. By reviewing children's language acquisition patterns…

Research in training subjects to comprehend compressed speech has led to deeper studies of basic listening skills. The connected discourse is produced by a technique which deletes segments of the speech record and joins the remainder together without pitch distortion. The two problems dealt with were the sources of individual differences in the…