Some time ago there were news about the ‘ happiest man on earth’, a Tibetan Monk whose brain produced gamma waves never before reported in neuroscience. squared oscillation amplitudes) in different frequency bands and at different electrode sites as the basis for the interpretations. This fancy technology is based on the widely used EEG methodology power spectrum analysis. These devices range from robotic arms (1) to synthesised pianos (2), and what they have in common, is that they use electrical brain activity recorded from the scalp as the input. Thanks to the rapid development of brain-computer interfaces, researchers can build devices that users can control with their mind. Different applications of electroencephalogram ( EEG), especially in relation to mind-controlled technology, are receiving a lot of attention, and rightfully so.
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