A Comparative Study on Neuromotor Development in Twins

Abstract

Twins are a valuable source of observation and are considered a key instrument in scientific fields such as genetics, biology, or psychology. The literature suggests that hereditary and environmental influences can be assessed by comparing twin partners. In this paper, we have proposed to demonstrate the existence of differences in the neuromotor development of couples of monozygotic and dizygotic twins. In order to follow the infants’ evolution, we used the Peabody motor development scale, consisting of 6 subtests targeting archaic reflexes, locomotion, stationing, object manipulation, catching, and visual-motor integration. Children were evaluated every month until the age of 1 year. The results obtained show that there are differences between monozygotic and dizygotic twins, which are highlighted by the development stages.