Researchers from the Spanish University of Miguel Hernandez (UMH) presented a brain implant based on
This is the first time a chip of this type has been implanted.to a blind patient. The results turned out to be good - this means that in the future it is possible to develop a visual neuroprosthesis that will improve the vision of the visually impaired, this will affect their mobility. Researchers at UMH added that while they are optimistic, dozens of problems still need to be solved in order to bring the device into mainstream use.
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For six months, the researchers carried outexperiments in which a volunteer tried to determine the letters, their position and the shape of various objects. They were carried out several times to observe the process of changes in the human visual cortex.
An implantable device is a smalla three-dimensional matrix with 100 microelectrodes, it interacts bidirectionally with brain cells. Its width is 4 mm and the length of the electrodes is 1.5 mm. The device does not affect the function of the cerebral cortex or neurons located near the implant.
UMH researchers explained that the resultsnew research shows that implantation of these types of microdevices is safe for humans and can restore the visual perception of most patients. "The amount of electrical current required to induce visual perception with this type of microelectrode is much less than when using surface electrodes," they noted.
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