„Research results showed maternal sensitivity to be associated with speech comprehension and various milestones of language development. Thus, for example, the children of more sensitive mothers began to talk earlier and reached the milestone of a 50-word vocabulary at a younger age than children of less responsive mothers. In addition, maternal sensitivity at the age of 18 months predicted later language skills.“
Dr. Manja Attig u. a., What Impacts Early Language Skills? Effects of Social Disparities and Different Process Characteristics of the Home Learning Environment in the First 2 Years (2020), S. 4.