What is the standard EOG calibration voltage used in sleep recordings?

In sleep recordings, the standard calibration voltage for electrooculography (EOG) is set at 50μV. This standard ensures consistency and accuracy across various sleep studies, allowing for reliable measurement of eye movements, which are essential when diagnosing sleep disorders like narcolepsy or REM sleep behavior disorder.

The EOG records electrical activity associated with eye movements, and having a calibration voltage enables the technician to effectively assess the amplitude of these movements during the sleep study. By setting the standard at 50μV, it simplifies the process of interpreting the recordings, as variations can be consistently identified relative to this established baseline.

Knowing this standard calibration is crucial for both researchers and clinicians, as it supports the proper analysis of sleep stages and disturbances related to eye movement patterns.