I just came across this video on Facebook last night, and thought it was very interesting and I had to share. The theory discussed in the video claims that across cultures and linguistic groups there are five sounds, each with a meaning, that are used by infants 0-3 months of age, before the language acquisition period, to express a need or want. The hypothesis was developed by Australian former mezzo-soprano, Priscilla Dunstan, who shared her research with Oprah Winfrey on a past episode of her show. (One I wish I had seen when my son was first born). Check it out, and let us know if this theory has helped you understand your baby’s language a little more.