Which device is commonly used to capture snoring sounds during a polysomnographic study?

The use of a microphone or sound recording device is essential in a polysomnographic study to capture snoring sounds. These devices are specifically designed to record audio during sleep, enabling technicians and sleep specialists to analyze the nature and frequency of snoring, which can be an important indicator of sleep-disordered breathing and other related conditions.

This audio data is valuable as it helps in assessing not only the presence of snoring but also its intensity and relationship to other physiological parameters being monitored during the study, such as oxygen saturation levels and respiratory patterns. In contrast, devices such as an electroencephalogram focus on brain activity, a pulse oximeter measures blood oxygen levels, and a sleep diary serves as a subjective tool for recording sleep patterns rather than capturing vocalizations.