movements to "break-up" and be integrated into increasingly complex voluntary controlled movement. Many variables however, can interfere with development for instance, genetic pre-disposition or inherited characteristics, stresses during pregnancy, birth trauma, and environmental deprivation are but a few examples. Research has shown that retained primitive reflexes may impede subsequent behavior, motor control, sensory perception, eye-hand coordination, and cognition. Neuro-developmental delay is a term which describes the presence of reflexes because of an omission or arrest of a stage of early development. Certain combinations of retained reflexes exhibit themselves in ways that affect emotional and social well-being and academic progress.