Genes Activated for Human Speech Similar to Ones Used by Singing Songbirds

Genes Activated for Human Speech Similar to Ones Used by Singing Songbirds 

Erich Jarvis, a Duke neurobiologist, has found similarities between molecules in the vocal communication areas of the brains of zebra finches and budgerigars and gene products produced for speech in the human brain. So far, these are the only two discovered birds which possess these molecules. He studied the pathways of molecules used by songbirds while they learn how to sing. In past experiments, his group of researchers found a connection between the front part of the brain and the nerves in the brain stem of song birds. These nerves control the muscles which help the birds make songs. In a similar study, this connection was more abundantly clear through ultrasonic mating calls in mice.   Throughout these studies along with others, Erich Jarvis created a theory for the origins of vocal learning. This theory tries to give explanation to how the brain transformed from controlling motor skills to producing and learning spoken language and songs. 

Nature Of Science Themes:

• Science is based on evidence

• Science is collaborative

• Science is experimental and requires constant verification of findings 

Link to the article:

http://www.sciencedaily.com/releases/2013/02/130214111604.htm

Jack Nermyr
Hour 3