It has been believed for a long time that an individual's IQ is almost solely determined by genes and growth environment. However, in a recent article "The Habitability of IQ" (B. Devlin, Michael Daniels & Kathryn Roeder) featured in Nature, scientists persuasively argue based on thorough examinations from 212 science theses that the role genes play has in fact been highly overstated and that the effects of genes and growth environment on IQ are under 50% (Nature. July 31, 1997). What they suggest is that the difference in the environment of the mother's womb can lead to a difference in the unborn baby's life on earth. In short, the womb environment is crucial to development.

The vocal stimulation from the mother and father contributes to the unborn baby's brain formation.

Listening forms 90% of the unborn baby's brain development. If the aural stimulation continues and the unborn baby becomes used to it, the unborn baby can easily learn and remember what he has heard. By using the sound-abstracter, the mother's, father's and other family member's voices can be heard by the unborn baby. The parent's vocal stimulation via this type of prenatal conversation will contribute to the formation of the unborn baby's brain.

The unborn baby feels the pregnant mother's stress amplified more than one hundred times. These high levels of stress can cause negative effects.

Compared to others, the pregnant mother is exposed to stress, nervousness, anxiety, and irritation at much higher rates, all of which the baby experiences over 100 times more than the mother. In these conditions the uterus contracts, interfering with the blood flow. This causes negative effects on the growth of the unborn baby and increases the number of miscarriages. It may even lead to malformations. This device contains the sounds of nature, which the mother can listen to during pregnancy in order to maintain a stable prenatal care environment.

The unborn baby begins to recognize all five senses inside of the womb after the twenty-fourth week when the brain cells start to be formed. Four of the five senses such as Seeing, Hearing, Tasting & Smelling are directly felt by the baby, but Tactual sense is indirectly felt.
In general, the sense of sight & hearing sense can be felt in the 6th month of pregnancy and Taste & Olfactory sense felt in the 7th month of pregnancy (Fetal Medicine, F.A.Chervenak, 1999)

Baby sure can hear you

According to the study at Obstetrics & Gynecology Dept of Florida Medical College, a pregnant woman’s voice that was measured outside her womb at 72db increased by 5.2db to 77.2db inside the womb. A man’s outer voice at 90db decreased by 2.1db in the womb, while a woman’s voice decreased by 3.2db in case of woman’s voice. It shows therefore a fetus hears its mother’s voice (Sound Levels in the Human Uterus, Richards DS, 1992)

It was discovered that proper sound stimulation increases the Cerebral Glucose-Oxygen Quotient (Sound Stimulation increase the Cerebral Glucose: Oxygen Quotient in Fetal Sheep, Chao CR, 1993). The fact that the voices of parents help development of the fetal brain is closely related to this physiological change.

Up to 90% of nerve tissues of the fatal brain are developed and connected through the sense of hearing, which means that this important sense is an energetic source in activating the brain (Symposium on Fetal Education, Prof. Moon-Young, Kim, Medical College of Sungkyunkwan Univ., 1999). Comparing the number and time of fetal respirations to the number and time of fetal movements after letting the fetus listen to various kinds of music, the result is that the fetus’s respiring period remarkably increased when a pregnant woman listens to the preferable music. Also, it shows that the periods are not affected by the type of music. As a result, the fetus’s movement is surely influenced by music, but it is necessary that a pregnant woman listen to what she likes regardless of the type of music.

A fetus can easily learn and memorize when its auditory reactions are repeated and become familiar. For example, if the mother enjoys watching a particular soap opera during her pregnancy, her baby will make a pleasant response to the sound of the same TV drama after birth (Symposium on Prenatal Education, Prof. In-Kyung, Sung, Catholic Medical College, 1999)

A quiet environment is important for the unborn baby

Fetal breathing is influenced by external sounds. According to research results that were obtained through analyzing the impact of acoustic sound to the fetus by observing fetal movements with supersonic instrumentation, as the surrounding sound increased in volume and continued over a long period of time, fetal breathing appeared to be negatively affected (Gagnon et al, 1986; Devoe, 1989 ' Sherer, 1991). When approx. 75dB acoustic vibration was emitted through the pregnant woman's abdominal wall for about 5 second, it was observed that the fetus swallowed amniotic fluid. The fetus never spat out what was swallowed which lead to the decrease of amniotic fluid in the womb (Menashe & Sherer, 1990; Petrikovsky, 1993). Moreover, the chronic stress on mother resulting from the irritating noise may induce high-risk pregnancy such as underweight baby, toxemia of pregnancy, miscarriage, and premature birth (Arck, 1995; McCubbin, 1996; Landsbergis & Hatch, 1996; Hedegaard, 1996).

The baby’s brain, about 90 percent of development and connection of nerve organ is made from its auditory sense. (Prof. Mun-Young Kim, Medical School of Sungkyunkwan University of Korea, 1999).