Release date: 2014-04-02

A few days ago, scientists at Yale University announced that they can detect and reconstruct the human face in the human brain through brain scans, effectively reading out people's thoughts.
The researchers used the fMRI scan to successfully identify the face that the subject was watching. Researchers say the findings can be applied to witnesses to prove the face of criminals or to reconstruct dreams.
Previous experimental researchers were able to reconstruct the beach and urban scenes seen by the scanner.
Researchers at Yale University use fMRI scans to accurately reconstruct faces that are viewed by others. Marvin Chun, a professor of psychology and cognition, said that this is also a form of mind reading. The complexity of fMRI scanning technology is increasing, and scientists can extract information from individual brain scans and predict whether you see a beach, a city scene, an animal, or a building.
But previous research can only tell us what we are seeing is an animal or a building, and we can't tell us what animal or what building. This research is currently at different levels of complexity.
Professor Chun's student, Alan S. Cowen, wanted to verify that he could reconstruct his face with a pattern of brain activity. This task is very difficult because the face is more complicated and finer than the building. The human brain has a large area to deal with facial information, because it is very important to survive.
Cowen said that human understanding of the face is much higher than understanding the building, we can rebuild the face of a criminal.
The team asked six people to observe 300 different "training" faces while performing fMRI scans. They used this to build a statistical database of the brain's response to these individual faces. Then let the six people see a new set of faces in the next scan.
To extract these fMRI data, the researchers used their statistical database to reconstruct the faces seen by the subjects.
Cowen said that the accuracy of facial reconstruction has steadily improved with the improvement of the method. The team said that their discovery could even rebuild the dream.

Source: Kexun Medical Network

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