The Enhanced Brain
The Enhanced Brain
This concluding chapter focuses on the brain-machine interface (BMI). The BMI is a device that establishes a dialogue between human thought and machine function. The technology records one's mental activities in a form of electroencephalogram (EEG) and transmits this information to a computer, which sends commands to servomotors. The BMI could record mental activities either by noninvasive or by invasive technique. The noninvasive technique involves placing electrodes on the scalp in order to record a large number of neurons for an EEG reading. However, the computer spatial resolution in this technique is relatively low. Meanwhile, the invasive technique requires a grid of electrodes to be implanted in the skull. In contrast with the noninvasive method, this technique offers an excellent spatial resolution in the computer because it measures the sensitivity of the micronetwork of neurons.
Keywords: brain-machine interface, electroencephalogram, computer, servomotors, Noninvasive technique, invasive technique
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