Study: Unravelling the chemistry of speech in stammering

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Six MRI brain scan images

Added 28th May 2025

A PhD student from Bangor University invites you to take part in her research into brain signalling and stammering.

Nia Williams says, "Is speech dysfluency linked to signals in the brain that tell us to stop or start? That's what previous research has suggested. However, much of this is theoretical and has not been directly studied in people who stammer.

'For my PhD study, I want to use magnetic resonance imaging (MRI) scans to measure the different chemicals in the brain linked to this signalling. I'll look at both people who stammer and people who don't to try and understand if a difference exists". 

What's involved?

Nia says, "We are looking for people who stammer aged 18 to 45 and whose first language is English or have spoken English from a young age.

'We'll ask you to take two sessions where we'll use MRI scans to collect data on the neurochemicals in your brain. You won't have to do anything during these sessions except simply sit back and relax during scanning. 

'It should take a total of 2 hours and will take place at Bangor University. We'll pay you £10 per hour plus the cost of travel and accommodation. 

'The results will help us better understand the processes involved in the execution of speech movements in fluent speech as well as in people who stammer".  

 Please email Nia at nww23pzp@bangor.ac.uk if you are interested in taking part, or would like more information.  

This study has been approved by the STAMMA Research Panel read more about this process.

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