In most cases, the problem is caused by damage to the eyes or optic nerve, rather than the “visible” part of the brain. That means you can close the eyes and direct information directly from the camera to the brain.
Researchers at Biological Medical College in Houston recently took a big step toward this purpose, which is a brainstorming tool that allows students to draw the alphabet to identify the alphabet. In a study of four blind people with electrodes implanted in the brain of people with HIV, researchers showed that researchers were able to transmit letters using an electric stimulus sequence.
In his comments, senior author Daniel Yosher said that “when we use an electric stimulator to track changes directly to the patient’s brain, they are able to” see “the intended alphabet and correctly identify different letters. He noted that he saw shiny dots or lines, such as writing for the sky.
In an article describing their work, the researchers wrote: “We tested an alternative method whereby the electrons were found on the surface of the visual cortex by stimulating the electrodes in a dynamic sequence. In both blind and visually impaired participants, the dynamic stimulus enabled accurate recognition of the alphabet predicted by the spatial map of the brain. The blind are presented in the form of up to 86 forms per minute in the wrong participants. These findings indicate that the brain prostate can produce similar insights into similar visual patterns. ”
The work shows that it is possible to transmit visual information directly to the blind by direct visual input. There is still work to be done before this can be used in clinical practice. In the study, electrodes stimulated only half a billion neurons in the visual cortex. Creating a more sophisticated set of electrodes that will effectively stimulate a large number of electrodes will be important next step. Nevertheless, this is an incredibly promising work.
An article describing the study was recently published in Cell Magazine.
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