Autonomic nervous function after evening bright light therapy: Spectral analysis of heart rate variability
Autor: | Satoshi Sakakibara, Masako Kohsaka, Tsukasa Koyama, Ikuko Kawai, Riko Kobayashi, Noriko Fukuda, Hiroshi Honma |
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Rok vydání: | 2000 |
Předmět: |
Adult
medicine.medical_specialty Sympathetic nervous system Sympathetic Nervous System Evening Frequency band Coefficient of variation Autonomic Nervous System Electrocardiography Heart Rate Internal medicine Heart rate Humans Medicine Heart rate variability Circadian rhythm Fourier Analysis business.industry General Neuroscience Signal Processing Computer-Assisted General Medicine Phototherapy Circadian Rhythm Psychiatry and Mental health Autonomic nervous system Endocrinology medicine.anatomical_structure Neurology Female Neurology (clinical) Arousal business |
Zdroj: | Psychiatry and Clinical Neurosciences. 54:363-364 |
ISSN: | 1440-1819 1323-1316 |
Popis: | In order to investigate the effects of 5000 lx evening bright light on autonomic nervous function, a spectral analysis was used to assess heart rate variability in consecutive 5-min epochs just after 60 min of bright light therapy was given to 12 young women (range: 20–21 years of age). The study revealed that a low frequency band (LF) increased in bright light conditions (BL) in comparison with controlled conditions (CL). High frequency band (HF), LF : HF ratio and the coefficient of variance (CV R-R) were not significantly different between the two conditions. These results indicate that 5000 lx evening bright light may affect sympathetic nervous system activity in healthy women. |
Databáze: | OpenAIRE |
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