How seeing his own brain inspired doctor to find a method to rapidly detect delirium

Dr Greg Scott demonstrates how an EEG headset is used in his work. Photograph: Andy Hall/The Observer

As a student, the neurologist Greg Scott had very little interest in following a career in medicine. Computing was the focus of his studies.

Then one day he suffered a grand mal seizure. Also called a tonic-clonic seizure, it causes a loss of consciousness and violent muscle contractions.