NPR

The first wiring map of an insect's brain hints at incredible complexity

Researchers have mapped the more than 500,000 connections in the intricate brain of a fruit fly larva. This map, they say, could help scientists figure out how learning changes the human brain, too.
What looks like a pin-headed critter on the right is actually a larval version of the fruit fly on the left. Both have remarkably complex brains, scientists say, with different regions devoted to decision-making, learning and navigation.

Scientists have created the first detailed wiring diagram of an insect brain.

The brain, from a fruit fly larva, contained 3016 neurons connected by 548,000 synapses, the team reported Thursday in the journal Science.

Previous wiring diagrams, known as connectomes, were limited to worms and tadpoles with just a few hundred neurons and a few thousand synaptic connections.

The fruit fly larva connectome is an important advance because it's "closer in many, an author of the study and an associate professor of biomedical engineering at Johns Hopkins University.

You’re reading a preview, subscribe to read more.

More from NPR

NPR2 min read
More Than 500 People Have Been Arrested At Pro-Palestinian Protests At Colleges
Students and others are protesting Israel's war against Hamas in Gaza and, in some cases, their school's investments in Israel. Presidents at several schools face calls to resign amid the protests.
NPR5 min read
Iran Women's Protests Are The Focus Of 'Persepolis' Author Marjane Satrapi's New Book
The French Iranian author and artist, best known for her graphic novel Persepolis, edited and contributed to a new graphic anthology titled Woman, Life, Freedom, inspired by Iran's recent protests.
NPR5 min readWorld
Blinken Tells China It's In Their Interest To Stop Helping Russia
NPR's Steve Inskeep speaks with U.S. Secretary of State Antony Blinken following his talks with Chinese leader Xi Jinping and top Chinese officials in Beijing.

Related Books & Audiobooks