Looking at an image produces a host of faster electrical responses, which are thought to relate to the processing of the image that occurs prior to conscious recognition. (scientificamerican.com)
Evidence is showing that music has the power to increase intellectual ability by stimulating electrical responses in the brain, promoting creativity, increasing receptivity to learning by inducing a relaxed state, and capitalizing on instinctive body rhythms which stimulate conceptual ability. (geniusbabies.com)
The tests used in these cases, which measure electrical responses to sounds in the brain, give only a crude measure of hearing ability: they miss children with moderate impairment, said Lonsbury - Martin. (newscientist.com)