As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Thursday 14 January 2016

Singing in the brain: Songbirds sing like humans

A songbirds' vocal muscles work like human speakers, singers

Date:January 12, 2016

Source:Emory Health Sciences

A songbirds' vocal muscles work like those of human speakers and singers, finds a study recently published in the Journal of Neuroscience. The research on Bengalese finches showed that each of their vocal muscles can change its function to help produce different parameters of sounds, in a manner similar to that of a trained opera singer.

"Our research suggests that producing really complex song relies on the ability of the songbirds' brains to direct complicated changes in combinations of muscles," says Samuel Sober, a biologist at Emory University and lead author of the study. "In terms of vocal control, the bird brain appears as complicated and wonderful as the human brain."

Pitch, for example, is important to songbird vocalization, but there is no single muscle devoted to controlling it. "They don't just contract one muscle to change pitch," Sober says. "They have to activate a lot of different muscles in concert, and these changes are different for different vocalizations. Depending on what syllable the bird is singing, a particular muscle might increase pitch or decrease pitch."

No comments:

Post a Comment