An exploration of the feature-positive effect in adult humans

Experiment 1 compared the acquisition of a feature-positive and a feature-negative discrimination in humans. In the former, an outcome was signaled by two stimuli together, but not by one of these stimuli alone. In the latter, the outcome was signaled by one stimulus alone, but not by two stimuli together. Using a within-group design, the experiment revealed that the feature-positive discrimination was acquired more readily than the feature-negative discrimination. Experiment 2 tested an explanation for these results, based on the Rescorla-Wagner theory, by examining how novel discriminations, based on a combination of a feature-positive and a feature-negative discrimination, were solved. The results did not accord with predictions from the theory. Alternative explanations for the results are considered.     

Principles and practices of designing narrative distance for transformative learning experiences

Narratives have a unique ability to grant listeners emotional and cognitive space in a way that encourages them to choose how they will make sense of a story. This effect, called narrative distance, also has the potential to help create transformative learning experiences. This article is a qualitative research study of experts who regularly design for narrative distance. Six experts from a variety of fields were interviewed about the principles and practices of designing for narrative distance with the purpose of discovering ways that instructional designers can better facilitate transformative learning experiences. A variety of principles and practices on how to create narrative distance are categorized under four themes: cognitive space, emotional space, invite change, and meaningful content. General comments are also given on the application of these insights to instructional design along with further suggestions for research.