Small deviations from bilateral symmetry (fluctuating asymmetries) are cues to fitness differences in some animals. Therefore, researchers have considered whether animals use these small asymmetries as visual cues to determine appropriate behavioral responses (e.g., mate preferences). However, there have been few systematic studies of animals'…

An assessment of identity matching to sample with 2-dimensional forms was conducted with 44 subjects with moderate and severe intellectual disabilities. Overall, generalized identity matching was demonstrated in 34 of 44 subjects, including 7 of 16 individuals with mental age scores below 3.0 years. (Author/DB)

The effects of varying training settings and objects on the development of skill generalization were studied with 60 retarded students (5-16 years old). Research procedures were identical for all groups except for the manipulation of settings and objects. A factorial analysis of covariance supported the prediction that the visual discrimination…

This study evaluated the effectiveness of a multimedia computer-based instructional program with four middle school students with moderate/severe mental retardation in establishing match-to-sample skills and generalizing those skills to the natural setting (a grocery store). In vivo probes found mean and median duration to find target items…