„Research with behavioural and neurophysiological paradigms suggests that socioeconomic differences in early cognitive development emerge in the first year of life. […] The first two years of life have been shown to be relevant for emerging associations between SES and, for example, basic aspects of cognitive functioning, such as recognition memory and visual attention.“
Dr. Maximilian Seitz u.a., Socioeconomic differences in looking behavior in habituation tasks in the first two years of life. In: European Journal of Developmental Psychology, 2025, Vol. 22, No. 1, S. 2.