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Spectral Analysis of Polysomnography in Narcolepsy
Psychiatry Investigation ; : 193-197, 2017.
Article in English | WPRIM | ID: wpr-166081
ABSTRACT

OBJECTIVE:

This study was conducted to identify differences between people with narcolepsy and the normal control of delta and theta activity using electroencephalogram (EEG) spectrum analysis of nocturnal polysomnography (PSG).

METHODS:

Seven narcolepsy patients and seven age-sex matched normal controls underwent PSG and multiple sleep latency tests. Participants' non-rapid eye movement (NREM) sleep EEGs in PSG was analyzed using a Fast Fourier Transform technique.

RESULTS:

While NREM delta activity of people with narcolepsy declined during the first three periods of NREM, there was no change during the 4th period of NREM. The increase in NREM theta activity also lasted until the 3rd period of NREM but did not occur during the 4th period of NREM. In comparing sleep parameters, REM sleep latency in the narcolepsy group was significantly shorter than in controls.

CONCLUSION:

These results suggest that people with narcolepsy are likely to have a delta and theta activity-related sleep disturbance mechanism in NREM sleep.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Sleep, REM / Spectrum Analysis / Polysomnography / Electroencephalography / Eye Movements / Fourier Analysis / Narcolepsy Limits: Humans Language: English Journal: Psychiatry Investigation Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Sleep, REM / Spectrum Analysis / Polysomnography / Electroencephalography / Eye Movements / Fourier Analysis / Narcolepsy Limits: Humans Language: English Journal: Psychiatry Investigation Year: 2017 Type: Article