eli5: How computer read brain signal

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Computer can read electromagnetic wave by transferring them from frequencies into binary code. ( correct me if im wrong). But how computer can turn brain signal into binary code and predict the movement of the individual ( such as monkey playing a game) how does human so powerful that they created binary code for one specific alphabet and it is same as what brain use it for the specific alphabet. For example, the binary code for letter A is 00001 and how does the brain come out with the same as well. or my understanding is wrong, pls help.

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4 Answers

Anonymous 0 Comments

Scalp electrodes are used for EEG (brainwave) acquisition and analysis.

Those EEG signals can then be cross correlated with, for example, auditory or visual cortex input stimulus to then map EEG responses with whatever was stimulated.

Or in words, you have a bunch of EEG scalp electrodes attached to your head while under active observation, and then you view an inkblot image. Your EEG responses could then be mapped to the visual content of the inkblot so that the next time you viewed the said inkblot your EEG responses thereto could then be accurately predicted.

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