Babies have an unusual ability to see those things and differences in pictures that are not visible to adults.
In a study conducted by researchers from Japan, it has been reported that infants under 5 months of age have an ability to detect changes in pictures or images that are not visible to adults. However, this ability disappears rapidly, and infants in the age range of 5 months to 6 months are unable to detect image differences and surface changes. By the time, when an infant reaches 7 months of age, he or she starts perceiving surface properties.
This study shows that babies, below 5 months of age, can see far more details and differences in the form of colors and objects in pictures that adults cannot see. Many things that are almost similar to adults appear wildly different to babies – a process known as “perceptual constancy”. Researchers are of opinion that this “is acquired through postnatal learning.” However, the quality disappears within days after 5 months of age – probably to give place to other important abilities.
This ability of looking at minor details is considered as one of the qualities that disappear with time. Among other qualities are speech sounds in languages that are not, usually, audible by adults.
Yang, J., Kanazawa, S., Yamaguchi, M., & Motoyoshi, I. (2015). Pre-constancy Vision in Infants Current Biology, 25 (24), 3209-3212 DOI: 10.1016/j.cub.2015.10.053