From Brainstorm: Detective Stories from the World of Neurology, by Suzanne O'Sullivan
IF
"If a patient were to tap their tongue rhythmically in their mouth it might register in the brainwaves to look something like a seizure. The EEG electrodes cannot tell if the electrical activity they record comes directly from the brain or somewhere else. It is up to the doctor to differentiate a tapping tongue from a seizure."
From Chapter 6, August
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