Research Article

Age-Dependent Increase of Absence Seizures and Intrinsic Frequency Dynamics of Sleep Spindles in Rats

Figure 2

Two-second EEG epochs with sleep spindles as recorded in WAG/Rij rat at three different ages. Sleep spindles (marked in grey) were identified automatically based on the continuous wavelet transform. Bottom plots demonstrate “skeletons” of wavelet surfaces, in which dominant frequency fluctuates in the spindle frequency band, 9–14 Hz.
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