India, Oct. 23 -- A 65-year-old woman with Parkinson's disease surprised doctors by playing the clarinet while undergoing brain surgery in London.

Denise Bacon, from Crowborough in East Sussex, experienced instant improvement in her finger movements as electrical stimulation was applied to her brain.

According to the BBC, the retired speech and language therapist underwent deep-brain stimulation (DBS) at King's College Hospital to relieve her Parkinson's symptoms.

Diagnosed in 2014, Ms Bacon's condition had affected her ability to walk, swim, dance, and play the clarinet. She had stopped performing with the East Grinstead Concert Band five years ago.

During a four-hour operation, Professor Keyoumars Ashkan performed DBS while Ms Bacon...