When I first met Carol, she had lain in a hospital bed for months without responding or showing any sign of awareness.
A scan had revealed substantial damage to the frontal lobes of her brain, which control our important cognitive abilities, such as problem-solving, memory, language and judgment.
In July 2005, the married 23-year-old had been hit by two cars while crossing a busy road. A moment's distraction had redefined the rest of her life. She had repeatedly been tested by neurologists and diagnosed as vegetative. But was she?
