M
Masako Kohsaka
Researcher at Hokkaido University
Publications - 39
Citations - 970
Masako Kohsaka is an academic researcher from Hokkaido University. The author has contributed to research in topics: Polysomnography & Circadian rhythm. The author has an hindex of 18, co-authored 39 publications receiving 910 citations.
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Journal ArticleDOI
Seasonal variation in the human circadian rhythm: dissociation between sleep and temperature rhythm.
TL;DR: Findings indicate that not only the external (to the local time) but also the internal (between circadian rhythms) phase relations of the human circadian rhythms depend on season.
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Midday exposure to bright light changes the circadian organization of plasma melatonin rhythm in humans
TL;DR: It is indicated that midday exposure to bright light for 3 consecutive days changes the circadian organization of plasma melatonin rhythm in humans.
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Gender difference of slow wave sleep in middle aged and elderly subjects
Noriko Fukuda,Hiroshi Honma,Masako Kohsaka,Riko Kobayashi,Satoshi Sakakibara,Shinobu Kohsaka,Tsukasa Koyama +6 more
TL;DR: Sleep EEG of eight healthy males and eight females aged 54–72 years were recorded at their homes and electroencephalograms were visually scored and analyzed by spectral analysis using the FFT method.
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Psychotic episodes during Zonisamide treatment
TL;DR: It is found that the incidence of psychotic episodes during ZNS treatment was several times higher than the previously reported prevalence of epileptic psychosis, and that the risk of psychoticisodes was higher in young patients.
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Effects of vitamin B12 on plasma melatonin rhythm in humans: increased light sensitivity phase-advances the circadian clock?
TL;DR: It is found that the 24-h melatlonin rhythm was significantly phase-advanced in the vitamin B 12 trial as compared with that in the placebo trial, raising the possibility that vitamin B12 phase- Advances the human circadian rhythm by increasing the light of the circadian clock.