Attending the Masterclass in Sleep Measurement at Oxford University: A Reflection from Emma and Benji

At the start of July, we had the privilege of attending the Sleep Measurement Masterclass at Oxford University, a two-day intensive course focused on polysomnography (PSG), actigraphy, sleep diaries, and wearable devices. The training couldn’t have come at a better time as we continue our data collection for Ambient-BD, a longitudinal study exploring circadian timing and sleep in individuals with bipolar disorder and healthy controls.

The course brought together researchers and clinicians from all over the world, including Scotland, Chile, Saudi Arabia, the UK, and Ireland (us!)- ranging from early career research assistants to experienced professionals with over a decade in the field. This mix created a dynamic environment full of real-world insights, shared tips, and new connections.

Day One: EEG, Events, and the Art of Sleep Scoring

The first day covered the nuts and bolts of PSG and polygraphy, beginning with a hands-on session of EEG electrode placement using the 10-20 system and interpreting the data using the AASM scoring guidelines (V3.0). In doing this, we learned practical tricks that will improve our own PSG setups in Ambient-BD. For instance, we discovered ways to quickly and accurately map out and mark EEG locations, apply electrode paste to strategically part facial hair for chin EMG placement, and other details that seem small but will ultimately have big wins for data quality and participant comfort. We then got the chance

to discover how breathing events, periodic limb movements, and arousals are scored, which was equally exciting.

Day Two: Actigraphy, Diaries, and Wearables

The second day also focused on methods that directly align with our work: actigraphy, sleep diaries, wearables, and “nearables”- technologies like radar, infrared, or pressure sensors placed in the sleeping environment without requiring individuals to wear anything. In our study, we are using nearable radar-based sensors to track sleep patterns across 90 days. This has several advantages for long-term monitoring as it is passive, non-intrusive, and easy to use. A major highlight of this session was the opportunity to see, handle, and experiment with a wide range of sleep measurement devices; from actigraphy watches to consumer-grade clinical wearables and nearables. Having the chance to interact with the devices and ask questions helped us to better appreciate the practical challenges (and solutions!) that go into accurate, participant-friendly data collection.

A major theme during discussions on wearables and nearables was the so-called “black box” problem in utilising commercial sleep devices. This relates to how the algorithms used to process raw data are often proprietary and not publicly available. This can make it difficult to interpret, replicate, or trust the data, especially when trying to use these devices in scientific research or clinical decision-making. For our project, Ambient-BD, it reinforced the importance of our role in validating newer technologies, like the radar-based nearable that we are using, against gold standard methods like PSG and accelerometry.

We also benefited from networking opportunities throughout the masterclass. The teachers, leading researchers, and clinicians, such as Dr. Rachel Sharman, Dr. Lizzie Hill, and Anna B. Szabo to name a few, took the time to ask each of us about our specific work and projects. They offered targeted advice and put us in touch with other researchers we may be interested in collaborating with.

A Bit of Oxford, Too

While the days were full of learning, we also made time to explore. We visited the iconic Radcliffe Camera and Tom Tower and even squeezed in a scenic jog along the River Cherwell. After long days immersed in EEG’s and accelerometry, it was the perfect way to clear our heads.

Going Forward with This Knowledge

As research assistants, we understand the level of preparation that goes into running a study like Ambient-BD. Attending this masterclass not only sharpened our technical skills but also gave us insight into the exciting future that is ahead in the world of sleep research. For our participants, it ensures that their data is collected with precision and care. We also stay committed to using best practices by staying up to date with developments in the field. Networking and getting to know other dedicated, passionate researchers, clinicians and future leaders was a major plus!

Want to Learn More?

If you’re curious about our work or would like to get involved in Ambient-BD, please don’t hesitate to reach out to us on ambientbd@mu.ie! You can also explore more of our research at https://www.familygenomics.maynoothuniversity.ie/ . Sleep science is evolving quickly, and we’re excited to be part of the journey.