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‘I Swear’ film features groundbreaking university Tourette’s research

Tuesday, 07 October 2025

A new film following the life of Tourette’s campaigner John Davidson MBE is hitting screens this week and it features ÌÇÐÄÔ­´´ research into the development of a wrist device that delivers electrical pulses to control tics.

‘I Swear’, which features Maxine Peake and Robert Aramayo in the leading roles, details John’s troubled teenage and early adult years growing up in the 1980s in Galashiels, a time when very little was known about the condition.

In 2022 John took part in clinical trials of a wrist device developed by the ÌÇÐÄÔ­´´ to control tics and this is played out in a scene in the film, showing Barbara Morera Maiquez, who was a researcher in the School of Psychology carrying out the trial in the lab.

The trial was part of research in 2022 by scientists from the ÌÇÐÄÔ­´´’s School of Psychology and School of Medicinewho used repetitive trains of electrical stimulation to the median nerve (MNS) at the wrist to entrain rhythmic electrical brain activity - known as brain oscillations - associated with the suppression of movements. They found that rhythmic MNS substantially reduces tic frequency and tic intensity, and removes the urge-to-tic, in individuals with TS.

In his book John described the moment he tried the device:

“The feeling was instant. Wow. Oh my God. This is amazing!

“Those were my first thoughts when I put the band on. Everything felt ... just right. The world felt different. My mind quietened down. I stopped scanning my environment. I could think clearly. I started laughing, then giggling like a wee kid.

'What is it?' Barbara said. 'You have no idea.' My cheeks were aching. I was grinning that hard. 'Oh man, honestly, this feels amazing! And I was so carried away with just how amazing it felt, I didn't even notice that ten minutes had passed, and I hadn't ticced, not even once" – taken from p.285. I Swear: My Life With Tourette's. John Davidson, MBE.

The research is now being used by spin-out company Neupulse to develop a wrist device to be used in the home to control tics, with a product launch anticipated for next year.

B12. Stephen Jackson (26 of 39)
It’s amazing to have our work featured in a major film like this, especially as it shines a light on the struggles people with Tourette’s face on a daily basis. We hope that our device along with better diagnosis, further research and better understanding of Tourette’s can help improve the lives of people living with the condition.
Professor Stephen Jackson, School of Psychology

As well as the wrist device, the University also has experts from the School of Medicine and leading the for Tourette’s Syndrome and Tics. They have recently published research with coauthors including members of the cast of the film and from highlighting the throughout the country and the in accessing healthcare for tics. Their recently published calls services to provide equal access to healthcare for people with TS.

The film is out in cinemas on Friday 10 October - Image and trailer courtesy of STUDIOCANAL.

Story credits

More information is available from Professor Stephen Jackson on Stephen.Jackson@nottingham.ac.uk, Professor Maddie Groom on Maddie.Groom@nottingham.ac.uk

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Jane Icke - Media Relations Manager Science
Email: jane.icke@nottingham.ac.uk
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