Scientists Peer Into the Brain of a Fruit Fly in Mid-Flight

By Andrew Moseman | February 18, 2010 1:06 pm

FFlyFlightThanks to a little technological ingenuity, we may soon get a look at what exactly is happening in the flying brain. In the journal Nature Neuroscience, Caltech researchers document how they managed to monitor the brain activity of fruit fly in flight.

“The challenge was to be able to gain access to the brain in a way that didn’t compromise the animal’s ability to fly, or to perform behavior,” said study researcher Michael Dickinson of Caltech. “We couldn’t just rip the brain out of the body and put it into a dish” [LiveScience]. Researchers have previously studied activity in the tiny brain of a living fruit fly, but only when it was restrained. Dickinson’s team created a way to look inside while the bug was flying around.

First they tethered a fly, clamping its head in place but leaving its wings free, and then they cut away a part of the brain’s covering so they could attach electrodes to neurons. Finally they induced the fly to flap its wings with a startling puff of air, and tracked it with digital cameras while the electrodes collected data.

Dickinson said the work, conducted with postdoctoral scholars Gaby Maimon and Andrew Straw, suggests at least part of the brain of the fruit fly (Drosophila melanogaster) is in a different and more sensitive state during flight than when the fly is quiescent [UPI]. And, he says, they saw double the normal activity in the visual neurons. Having achieved this basic step, the team hopes to further figure out how the extra activity helps the flies see and steer while aloft.

Related Content:
80beats: Scientists Glean Secrets of Flight From Birds, Bats, and Bugs
80beats: Alcoholic Fruit Flies Don’t Know When To Say When
80beats: Model Suggests 4-Winged Dino Glided Like a Flying Squirrel
80beats: Researchers Flip Brain Cells On And Off With Light Pulses

Image: Caltech

CATEGORIZED UNDER: Mind & Brain
NEW ON DISCOVER
OPEN
CITIZEN SCIENCE
ADVERTISEMENT

Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!

80beats

80beats is DISCOVER's news aggregator, weaving together the choicest tidbits from the best articles covering the day's most compelling topics.
ADVERTISEMENT

See More

ADVERTISEMENT
Collapse bottom bar
+

Login to your Account

X
E-mail address:
Password:
Remember me
Forgot your password?
No problem. Click here to have it e-mailed to you.

Not Registered Yet?

Register now for FREE. Registration only takes a few minutes to complete. Register now »