Journal of Neurodegenerative Diseases / 2013 / Article / Fig 1

Review Article

Sleep-Wake Cycle and Daytime Sleepiness in the Myotonic Dystrophies

Figure 1

Sleep features of a DM1 patient with narcoleptic-like phenotype. (a) Narcoleptic-like hypnogram. Notice the short sleep onset latency, early onset of REM sleep, frequent nocturnal arousals, and REM sleep dysregulation. (b) A 30 s epoch of MSLT of the same patient demonstrating sleep onset REM sleep (SOREMPs). This patient showed 3 SOREMPs in a 4-nap protocol MSLT. ROC & LOC: right and left electrooculogram. F4, F3, C3, C4, T4, T3, O1, and O2: electrode positions according to the 10/20 International System. Chin: electromyography of the mentalis muscle.

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