3 doctors weighed in:
What is brain wave?
3 doctors weighed in

Dr. Edward Smith
Neurology
2 doctors agree
In brief: Electricity
Nerve cells operate (signal) electrically.
On the small scale (e.g. One neuron) electrical activity can be measured with very tiny instruments applied close to the nerve cell, which is invasive. The combined electrical activity of many neurons is recordable with non-invasive means, usually on the scalp, the tracing of which is "the brain wave".

In brief: Electricity
Nerve cells operate (signal) electrically.
On the small scale (e.g. One neuron) electrical activity can be measured with very tiny instruments applied close to the nerve cell, which is invasive. The combined electrical activity of many neurons is recordable with non-invasive means, usually on the scalp, the tracing of which is "the brain wave".
Dr. Edward Smith
Dr. Edward Smith
Thank
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