Abstract :
In July 2006, after suffering from epilepsy for more than 30 years, 41-year-old Sonya Hearn arrived at an unusually comfortable corner room on the eighth floor of Columbia University Medical Center, in New York City. During her 20¿day stay there, she had several epileptic seizures while doctors recorded the electrical activity of her brain through electrodes leading out of an 8¿centimeter hole in her head.
