Wearing VR glasses and holding a handle in each hand, the front will present a three-dimensional image of a hundred thousand neurons of the brain. Scientists can accurately describe the orientation and shape of each neuron, and draw the neurons for the brain. A digital map.
"The total number of neurons in the human brain is as high as 86 billion. It is known as the most complex body structure in the universe. However, humans have been engaged in brain research for nearly 100 years and still can't figure out exactly how many kinds of neurons and how they interact. Relationship.†Xie Wei, Dean of the Southeast University’s Life Sciences Research Institute said.
At the recently established Institute of Brain Science and Intelligent Technology of Southeast University, a reporter from Science and Technology Daily saw that researchers are using visualization software and VR devices to rebuild individual brain neurons.
"What's in my head" is still a mystery
Brain science research is not only a hot area at the forefront of international science and technology, but also a “final domain†that understands nature and human beings. At present, the United States regards the three-dimensional morphology and basic types of neurons as its key research areas, and China's "Scientific and Technological Innovation 2030 Major Project" has also initiated "brain science and brain-like research."
For a long time, scientists are most interested in how the brain actually realizes cognitive functions. In the past, we only knew the connection and cognitive functions of different brain areas at the macroscopic scale. For example, the brain part was in charge of the basic daily life of human beings. The brain marginal system was responsible for actions, emotions, and memory processing. The cerebral cortex was responsible for the human brain. Advanced cognitive and emotional functions.
However, the micro-scale brain working mechanism is much more complicated. For example, in the micro-nanostructures, the molecular structure and signal transmission of synaptic connections are expressed. At the 100-micron scale, local neural circuits and information coding such as cerebral cortical functional columns are displayed.
Xie Wei told a reporter from Science and Technology Daily that Southeast University has cooperated with the Allen Brain Institute in the United States to locate the frontier areas of brain science and provide the world with big brain data resources. The Institute of Brain Science and Intelligent Technology of Southeast University, which was established this time, is intended to integrate superior resources of various disciplines, break through the barriers of brain scientific research achievements and intelligent technologies, and better promote the integration of production, learning, and research.
Let the "reading mind" this super power come true
“The main work we are doing now is to digitize the structure of brain neurons and build a big brain science database to provide valuable data resources for biomedical research.†When describing how to draw 3D maps of brain neurons, Allen University of Southeast University Peng Hanchuan, the director of the center, described it as “big data with a lot of complexityâ€.
In the face of tens of billions of neurons and massive amounts of data, if we use traditional neuroscience research methods and data calculation and analysis methods, we cannot effectively study the brain. Southeast University will use the self-developed sensing, acquisition equipment and visualization software of the university to take the lead in carrying out brain neuron reconstruction.
“Our artificial intelligence software algorithm is very efficient. We have drawn a digital map of brain neurons in 3-4 days. Now we have completed the digital reconstruction of nearly 40 neurons. We hope to use new technologies to increase efficiency by several decades or even A hundred times." Peng Hanchuan said.
Drawing big data on brain science formed by 3D maps of brain neurons will provide scientific analysis for children's cognitive disorders, interventions in brain diseases, the development of adolescent brain development, and the study of changes in human emotions.
At the key laboratory of the Ministry of Education for Children Development and Learning Science at Southeast University, a researcher wearing a strange hat with various lines, he is testing a multimodal social emotion evaluation system. The subject's skin, heart rate, respiration, and EEG signals were monitored in real time. The system will collect emotional changes based on EEG caps, near-infrared signals, electrocardiograms, and facial expression sensors. The emotions will be judged in real time. On the big screen, a smiley face or a crying face will be created based on the emotional changes.
"With the brain science big data resources, an 'Electric Brain Cap' sensor can make the supernatural ability of 'Reading Mind Surgery' come true." Zheng Wenming, director of the laboratory, said that this system has been tested at Nanjing Brain Hospital. It can automatically analyze people's emotion regulation ability and sympathetic ability. At present, more than 100 children with autism and autism have been screened and evaluated early.
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