 Sound and brain >> EEG>> 
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音と脳の関係 -Sound and Brain-First, I will explain EEG. Ultra faint current always flows in the human brain. A method of recording electric activity occurring in the brain with electrodes on the scalp. This is "EEG". In all areas in the brain, countless currents are constantly occurring in various directions. There is a similar thing called "magnetoencephalography", which is different from brain waves measured by magnetic force rather than current. (Essentially the same as EEG)There are two types of electroencephalograms, spontaneous electroencephalogram and evoked electroencephalogram. Spontaneous brain waves are brain waves that are always living even without doing anything, and brain waves that are constantly evoked are electroencephalograms generated by external stimulation. Mnemonic name varies depending on stimulus, in case of sound, it is called "auditory evoked potential". In other words, sound is transmitted to the brain by this, and it is structured to hear it! |
