The theory proposed (recognition-by-components) hypothesizes the perceptual recognition of objects to be a process in which the image of the input is segmented at regions of deep concavity into an arrangement of simple geometric components. Experiments on the perception of briefly presented pictures support the theory. (Author/LMO)

This study of 73 children sought to determine if children's perceptual comprehension of numerals is higher when they are shown symmetrical rather than asymmetrical arrangements of pegs, and if comprehension scores related to age, sex, and/or social class. The main hypothesis was rejected but some age and class differences were found. (SJL)

Two experiments were conducted to investigate the perceptual processes involved in haptic exploration of randomly generated shapes. Experiment one required subjects to detect symmetrical or asymmetrical characteristics of individually presented plastic shapes, also varying in complexity. Scanning time for both symmetrical and asymmetrical shapes…

Investigated the influence of vertical, horizontal, and diagonal symmetry on recognition memory in preschool, kindergarten, and second-grade children. The influence of contour was also investigated. Children were trained to attend to axes of symmetry in order to improve performance on a memory task. (Author/DB)

Investigated whether 3- to 6-year-olds in a Montessori school created more symmetrical than asymmetrical designs when working with building materials. Found that symmetry occurred in designs of children as young as age 3, with the tendency increasing with age. Examined the need for increased use of building materials for teaching symmetry in the…