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Relation between sleep spindles time-frequency parameters on EEG of rats and intensity of absence-epilepsy was studied. Sleep spindles were divided into three classes: “slow”, “transitional” and “fast”. It was shown that high epilepsy activity in WAG/Rij rats is associated with considerable alteration of “transitional” spindles and lesser alteration of “slow” and “fast” spindles.


time-frequency EEG analysis; absence-epilepsy; sleep spindle; WAG/Rij rats; continuous wavelet transform.

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