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Posts Tagged ‘robustus archistrialis’

Sy Montgomery had a lovely story in the Boston Globe about studies investigating  animals’ dreams. I zeroed in on the beautiful little zebra finch.

“What do birds dream about?” Montgomery asks.

“Singing.

“University of Chicago professor Daniel Margoliash conducted experiments on zebra finches. Like all birds, zebra finches aren’t born knowing their songs; they learn them, and young birds spend much of their days learning and rehearsing the song of their species. …

“The researcher was able to determine the individual notes based on the firing pattern of the neurons. While the birds were asleep, their neurons fired in the same order — as if they were singing in their dreams.”

At American Scientist, Michael Szpir titles a related article “To Sleep, Perchance to Sing.”

“It turns out that single neurons in the forebrain song system of the sleeping birds display a pattern of activity that’s only seen in the waking bird when it sings. [Amish S.] Dave and Margoliash think that this neuronal activity is part of the learning process — the birds are rehearsing in their sleep by dreaming about singing.

“Since the awake male zebra finch will sing when a female is presented, it seems natural to ask whether the male finch has an image in mind when he sings in his sleep. Margoliash won’t speculate, but if human males are any indication we might imagine they dream of fetching female finches. It’s either that or bird seed.

“You can hear the song of the awake zebra finch at: http://www.williams.edu:803/Biology/ZFinch/zfsong.html.” More.

Read what other critters dream about at the Globe, here.

Photo: Nigel Mann

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