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HOME Brain Upgrade Medical Dictionary How 1 to 10
Most biofeedback systems work on the same principle: make it possible for the user to see or hear some bodily process that was hard to monitor before, and they can try to control it. Hardware exists to report back skin temperature, galvanic skin response (GSR), muscle tension via electromyelogram (EMG), and brainwave frequencies via electroencephelogram (EEG).
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