Ripples of electrical brain activity have been measured that correlate to areas of the brain involved in memories and learned information or experiences. This is interesting in that it supports the theory that memories and learning involve many brain cells rather than some simpler one memory stored in one brain cell. It is also interesting in that it demonstrates that electrical fields are present and can move with an expanding wave or ripple effect. See: Our brains may ripple before remembering, (neurosciencenews.com)
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