Prenatal stimulated babies have been shown to exhibit enhanced visual, auditory and motor development.

Research shows that fetal brain development can be stimulated while in the womb and it is proven that babies do recognise music or sounds played to them during pregnancy after their birth. It is also undeniable that babies given a sensible stimulatory boost in the womb are born with a number of desirable traits

One of the first studies to examine babies before they are born and to suggest that they can remember and learn was carried out by doctors in the Netherlands. Doctors used sound to determine if an unborn baby could react, respond to and recognise a specific noise. In the past, it was thought that babies were born without a functional memory but this study revealed that babies remember sounds they had heard in the womb and recognise them well into later life.

In Caracas, Venezuela, prenatal enrichment has been tested on a grand scale by an ambitious longitudinal study of 684 families randomized into experimental and control groups (Manrique et al., 1993). Extensive measurements were made at two days, one month, 18 months, three years and each year after this until age six.  Led by psychologist Beatriz Manrique, the program aimed at complete and integrated bio-psycho-social development of children through adequate stimulation, training, and nutrition.  Prenatal enrichment was taught in a 13-wk course of two hours per week, using the guidebook Answer Your Baby.

When measured, the stimulated babies showed consistently superior visual, auditory, language, memory, and motor skills. In addition, their mothers had greater confidence, were more active in labor, had greater success in breastfeeding, and showed more intense bonding and family cohesion. When measured at later ages, the experimental infants continued to outperform the control infants on a variety of tests (Manrique et al., 1998).

A lot more work has been done on the subject and similar results have been documented.