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Figure 3 | BMC Neurology

Figure 3

From: Change in heart rate variability precedes the occurrence of periodic leg movements during sleep: an observational study

Figure 3

Changes in the EEG spectral powers in transition from periods without PLMS to those with PLMS: filled circles, alpha frequency band; filled squares, beta frequency band; open circles, delta frequency band; open squares, theta frequency band; PLMS, periodic leg movements during sleep. Data are expressed as mean ± standard error. Note: “0” on the time axis signifies the beginning of the period with PLMS.

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