Double Setup
Study aims
The Double setup study aimed to validate the use of the Self applied somnography (SAS) system for use as a type-2 polysomnography system. Where the biggest difference between the gold standard PSG and the SAS being that the self applied system has a 4 channel frontal EEG and does not include the chin EMG. It further aimed to compare and validate the data from the wearables Empatica E4 and withings watches to the type 2 polysomnography measures.
Study Protocol
Participants slept in their home invironment for one night with the following signals being recorded:
- SAS - includes frontal-EEG, respiratory signals(cannula, thorax and abdominal breathing belts and oximeter), EGC and EMG.
- Gold standard EEG - 6 channel EEG with reference electrodes behind ears and 2 EOG channels.
- Sweating in palm - Electrodermal activity(EDA) electrodes placed in participants palm.
- Empatica E4 watch
- Withings smartwatch
| Details | |
| Number of participants | 201 |
Summary of the collected data:
| Sleep studies: | Sleep stages, breathing, snoring (audio), oxygen desaturation, electrocardiogram, leg movements, body movements, sleep position. |
| Anthropometry, body composition, physical fitness: | Height, weight and body mass index (BMI) |
| Withings smartwatch: | Heart rate, movement, sleep, oxygen saturation. |
| Empatica smartwatch: | EDA, temperature. |
| Questionnaires: | ISI, Screening questions for RLS, StopBANG, ESS, Berlin, PSQI, Questions about insomnia and sleepiness. |