Socio-economic Status (SES) Affects Infants' Selective Exploration

Infants change their behaviours in accordance with the objects they are exploring. They also tailor their exploratory actions to the physical context. This selectivity of exploratory actions represents a foundational cognitive skill that underlies higher-level cognitive processes. The present study compared the development of selective exploratory behaviours in high and low socio-economic status (SES) infants. Sixty-one 6-8- and 10-12-month-old infants were presented with rigid and flexible cubes on a tray that was half rigid and half flexible. There were SES effects for each category of exploratory behaviours: object only, surface only and object-surface interactions. Low-SES infants engaged in comparable amounts of exploratory behaviours with high-SES infants, but they exhibited behaviours less conducive to information uptake, compared with high-SES infants. The results suggest difficulty for low-SES infants in transitioning to more mature exploration strategies. Copyright (C) 2015 John Wiley & Sons, Ltd.