REM uykusu sırasında hızlı göz hareketleri Parkinson hastalığından PSP'yi farklılaştırır.

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BackgroundLittle is known about the characteristics and occurrence frequencies of rapid eye movements (REMs) during REM sleep in movement disorders.ObjectivesThe aim of this study was to detect and characterize REMs during polysomnographically defined REM sleep as recorded by electro-oculography (EOG) in 12 patients with progressive supranuclear palsy (PSP), 13 patients with Parkinson's disease (PD) and 12 healthy controls.MethodsUsing a modified EOG montage, we developed an algorithm that automatically detects and characterizes REMs during REM sleep based on their presumptive saccadic kinematics.ResultsCompared to PD and healthy controls, REM densities and REM peak velocities were significantly reduced in PSP. These effects were most pronounced in vertical REMs.ConclusionOcular motor dysfunction, one of the cardinal features of PSP, seems to be equally at play during REM sleep and wakefulness. For future studies, we provide a novel tool for the unbiased analysis of REMs during REM sleep in movement disorders.

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