November 28, 2021

Lakeview Gazette

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Brain implant gives vision to a blind woman | He began to distinguish between simple forms and characters

The 57-year-old, who lost her sight 16 years ago, began creating simple shapes and characters. Brain implant surgery installed on your optic nerve. This is a test and unpublished intervention by the team Biomedical Neuroscience Engineering from Miguel Hernandez University (UMH) Spanish city of Elche.

The intervention that created the highest concept known to date in this type of pathology, led by cell biologist Eduardo Fernண்டndez Joar, along with his team had already achieved the first successful experiment in animals in December 2020.

The display includes an implant placed in the cortex Intraocular microenvironments that “safely” stimulate the part of the brain that provides functions to the eyes. The device measures 4 millimeters on one side with electrodes 1.5 millimeters long. “This is the first time this type of brain transplant has been performed on a blind person, and the results are very encouraging for the development of the optic nervous system,” said Fernandez Jover.

This implant, as pointed out by a researcher at the Scientific Information and Information Service (SINC), can help blind or visually impaired people improve their mobility and help them become more ambitious in realizing the environment around them and distracting themselves. It .. “There are still many problems to be solved It is important to move slowly and create false expectations“, Fernandez Joaver clarified.

How did the first brain transplant for the blind come about?

The experiment lasted six months and involved a variety of tests to help the participant learn visual lining and observe possible changes, including creating video games to train the volunteer, a variation of the classic back-man.

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A complete trigger system is also included An artificial retina that mimics the function of the human visual system, Located within the normal mirror and capturing its front visual field, which was converted into trains of electrical impulses optimized to stimulate neurons in the optic cortex.

Among the key results of the study, it is clear that implantation does not affect the function of the cerebral cortex or nearby neurons. Even after many years of complete blindness, the human brain is still capable of processing visual information.

Finally, Fernandez Jover pointed out that the development of blind brain neuroprosthesis is “essential for the future” because many blind people do not have effective treatments or assistive devices.

Currently, The research team is recruiting new visually impaired volunteers to participate in these experiments Furthermore, they hope that in future studies, they will use sophisticated image coding that is capable of simultaneously inducing more electrodes to recreate more complex visual images.