Scientists have succeeded in recreating Pink Floyd’s song “Another Brick in the Wall” recorded in the brain cortex of a group listening to the song, by reading the brain signals associated with it and then decoding them using artificial intelligence. Although the resulting sound of the song was distorted, it was understandable to those who had previously listened to the song. This was considered a first step towards mind-reading.
Numerous experiments have been conducted to scan the human brain and decode the recorded signals, converting them into text or other audible or visual forms. Many of these experiments focus on combining brain scanning with magnetic resonance imaging, recording the symbols on it, and using an intelligent linguistic model similar to GPT to match the symbols and predict the words and ideas they represent, where the decryption device classifies the probability of the words following the previous word.
Brain activity patterns were then used to help choose the most likely word. The error rate in translating the word heard by the test subject and the word issued after brain scanning and decoding was very high, reaching about 94%, but the match rate with the ideas was much higher.
For example, the decryption device interpreted the phrase “I don’t have a driver’s license currently” read by one of the participants in the test as “She hasn’t even started learning to drive yet”. These experiments indicate that mind-reading decryption devices supported by the current level of artificial intelligence are still in their early stages, but experiments are making continuous progress, and it is expected to reach maturity in a few years, although the accompanying implications of this technology raise concerns as it threatens privacy.
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