At the limit of hearing possibilities

French otolaryngologist Alfred Tomatis was the first to systematically investigate the influence of high-frequency sounds on the human psyche.

According to his theory, the child, floating in amniotic fluid during the period of fetal development, hears a lot of sounds that are inaccessible to him after birth — the mother’s breath, her heartbeat, voice, noise from the work of internal organs, etc.

This is due to the fact that during the period of fetal development, the child’s ears are filled with a liquid that conducts sound much better than air; in particular, the liquid is much less attenuate high-frequency Continue reading →