Scanning your brain to decode the contents of your mind has been a subject of intense research interest for some time. As studies have progressed, scientists have gradually been able to interpret what test subjects see, remember, imagine, and even dream.
There have been significant limitations, however, beginning with a necessity to extensively catalog each subject’s unique brain patterns, which are then matched with a small number of pre-programmed images. These procedures require that subjects undergo lengthy and expensive fMRI testing.
Now a team of researchers in Kyoto has used neural network-based artificial intelligence to decode and predict what a person is seeing or imagining, referring to a significantly larger catalog of images. Their results are reported in Nature Communications.
“When we gaze at an object, our brains process these patterns hierarchically, starting with the simplest and progressing to more complex features,” explains team leader Yukiyasu Kamitani of Kyoto University.
“The AI we used works on the same principle. Named ‘Deep Neural Network’, or DNN, it was trained by a group now at Google.”
The team from Kyoto University and ATR (Advanced Telecommunications Research) Computational Neuroscience Laboratories discovered that brain activity patterns can be decoded, or translated, into signal patterns of simulated neurons in the DNN when both are shown the same image.
Additionally, the researchers found that lower and higher visual areas in the brain were better at decoding respective layers of the DNN, revealing a homology between the human brain and the neural network.
“We tested whether a DNN signal pattern decoded from brain activity can be used to identify seen or imagined objects from arbitrary categories,” explains Kamitani. “The decoder takes neural network patterns and compares these with image data from a large database. Sure enough, the decoder could identify target objects with high probability.”
As brain decoding and AI development advance, Kamitani hopes to improve the image identification accuracy of their technique. He concludes, “Bringing AI research and brain science closer together could open the door to new brain-machine interfaces, perhaps even bringing us closer to understanding consciousness itself.”
The Latest on: Mind reading technology
- What Your CEO Is Reading: Tune In, Turn On, Get Comfy; Six-Hour Workday; Ghosting on December 14, 2018 at 10:25 am
Every week, CIO Journal offers a glimpse into the mind of the CEO, whose view of technology is shaped by stories in management journals, general interest magazines and, of course, in-flight ... […]
- Importance of reading on December 13, 2018 at 10:11 am
In recent years, adolescents have been engaging more and more with technology, spending hours online ... The need of hour is to make the youths understand that habit of reading enables the mind to thi... […]
- This artist is using AI to paint with his mind on December 12, 2018 at 5:00 am
“This portrait, however, is not the product of a human mind,” Christie’s noted ... amalGAN, made by an AI reading my brain and painted anonymously on canvas in China. http://bit.ly/amalGAN "I am not r... […]
- From reading in the trees to running from the British army on December 7, 2018 at 10:14 pm
My most exciting memories are bound up with books, too. Reading was a form of trespass, of breaking rules behind adults’ backs. My mind could touch feelings and thoughts I was not supposed to, delving ... […]
- Five Top Technology Trends in Special Education on December 7, 2018 at 8:51 am
Underlying a range of new trends, experts say, is a growing recognition that designing learning resources from the beginning with students with disabilities in mind can benefit all ... new development... […]
via Google News and Bing News