Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

Google researchers create AI that maps the brain’s neurons

RATE THIS! +11
Posted in Medicine on 17th Jul, 2018 06:18 AM by Alex Muller

Mapping the structure of biological networks in the nervous system is computationally intensive. The human brain contains around 86 billion neurons networked through 100 trillion synapses, and imaging a single cubic millimeter of tissue can generate more than 1,000 terabytes of data. Luckily, artificial intelligence can help.

 

In a paper (High-Precision Automated Reconstruction of Neurons with Flood-Filling Networks) published in the journal Nature Methods, scientists at Google and the Max Planck Institute of Neurobiology demonstrated a recurrent neural network — a type of machine learning algorithm that’s often used in handwriting and speech recognition — tailored made for connectomics analysis.

 

Google researchers aren’t the first to apply machine learning to connectomics — in March, Intel partnered with the Massachusetts Institute of Technology’s Computer Science and AI Laboratory to develop a “next-gen” brain image processing pipeline. But they claim their model improves accuracy by “an order of magnitude” over previous deep learning techniques.

 

The researchers employed an edge detector algorithm that identified the boundaries of neurites (an outgrowth from the body of the neuron), as well as a recurrent convolutional neural network — a subcategory of recurrent neural network — that grouped together and highlighted pixels in scans depicting the neurons.

 

To keep track of accuracy, the team developed “expected run length” (ERL), a metric that, given a random point with a random neuron in a 3D image of a brain, measured how far the algorithm could trace a neuron before making a mistake. In a brain scan of a 1-million cubic micron zebra finch, the model performed “much better” than previous algorithms, the team reported.

 

“By combining these automated results with a small amount of additional human effort required to fix the remaining errors, [researchers] at the Max Planck Institute are now able to study the songbird connectome to derive new insights into how zebra finch birds sing their song and test theories related to how they learn their song,” Viren Jain and Michal Januszewski, Google researchers and lead authors on the paper, wrote in a blog post.

 

In addition to the paper, the team published the model’s TensorFlow code on Github, along with the WebGL 3D software they used to visualize the dataset and improve the reconstruction results. They plan to refine the system in the future, with the aim of fully automating the synapse-resolution process and “contributing to projects at the Max Planck Institute and elsewhere.”


Tags: brainneurosciencehealthmedicineresearchAIGoogle

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Science on 2018-08-16 18:07:15
    Radar could make for less-biased heart checks..read more
    Posted in Medicine on 2018-08-16 17:57:14
    Psychedelics Are Showing Real Promise for Treating Mental.....read more
    Posted in Hardware on 2018-08-15 14:29:50
    Airbus has solar powered stratosphere drone that has.....read more
    Posted in Science on 2018-08-15 14:22:56
    Baycrest Virtual Brain joins flagship neuroscience.....read more
    Posted in Medicine on 2018-08-14 02:56:05
    Failed antibiotics can be team up to fight against superbugs..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be mainstream..read more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower cost.....read more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down to.....read more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US energy..read more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation?..read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me