Dry electrode to detect brainwaves. This is how the use of a mind-controlled robot has become easier
An electrode is a device that can measure the electrical activity of brain cells, as they are constantly producing small and different, and therefore distinguishable, electrical charges, which can be added to individual actions. The electrode can detect and amplify these charges so that they can be used, for example, in a control process, but in their current form requires direct contact with the user’s head via a gel.
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in pages Applied nanomaterials from ACS A study has just been published describing how scientists designed a new type of dry electrode that can effectively measure brain waves without the need for a conductive gel. This is currently necessary for efficient detection of brain waves, and its imposition itself greatly complicates the whole process of conducting various “thought control” experiments. It also prevents the development of this technology in the consumer sector, because no one wants to put jelly on their head every time they want to control, say, a drone.
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The proposed “dry” electrode consists of three-dimensional graphene structures that can adapt to the shape of the head and work even on hair. Tests have shown that this electrode can be used to control a robot by interpreting brain signals from the visual cortex. However, it should be noted that the research is still in its infancy, and this new electrode is not yet as effective as a wet electrode. This is acknowledged by the researchers themselves, who highlight the limitations and challenges of these electrodes in terms of signal quality, stability and overall scalability.
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However, further development of dry electrodes is necessary to make thought control more common. Interpreting brain signals from the visual cortex could be an important part of everyday devices in the future, and electrodes that are less irritating and easier to use will be necessary to deploy this form of interface.
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