Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders
The purpose of this paper is to investigate the impact of circadian lighting-induced melatonin suppression on patients with psychiatric and neurological disorders in hospital wards by using an ad-hoc metrology framework and the subsequent metrics formalized by the CIE in 2018. A measurement scheme w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Clocks & Sleep |
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| Online Access: | https://www.mdpi.com/2624-5175/5/4/52 |
| _version_ | 1797381551735963648 |
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| author | Xinxi Zeng Thierry Silvio Claude Soreze Martin Ballegaard Paul Michael Petersen |
| author_facet | Xinxi Zeng Thierry Silvio Claude Soreze Martin Ballegaard Paul Michael Petersen |
| author_sort | Xinxi Zeng |
| collection | DOAJ |
| description | The purpose of this paper is to investigate the impact of circadian lighting-induced melatonin suppression on patients with psychiatric and neurological disorders in hospital wards by using an ad-hoc metrology framework and the subsequent metrics formalized by the CIE in 2018. A measurement scheme was conducted in hospital ward rooms in the Department of Neurology, Zealand University Hospital, at Roskilde in Denmark, to evaluate the photometric and colorimetric characteristics of the lighting system, as well as its influence on the circadian rhythm of the occupants. The measurement scheme included point measurements and data logging, using a spectrophotometer mounted on a tripod with adjustable height to assess the newly installed circadian lighting system. The measured spectra were uploaded to the Luox platform to calculate illuminance, CCT, MEDI, etc., in accordance with the CIE S026 standard. Furthermore, the MLIT based on MEDI data logging results was calculated. In addition to CIE S026, we have investigated the usefulness of melatonin suppression models for the assessment of circadian performance regarding measured light. From the results, the lighting conditions in the patient room for both minimal and abundant daylight access were evaluated and compared; we found that access to daylight is essential for both illumination and circadian entrainment. It can be concluded that the measurement scheme, together with the use of the Luox platform and Canva template, is suitable for the accurate and satisfactory measurement of integrative lighting that aligns with CIE requirements and recommendations. |
| first_indexed | 2024-03-08T20:54:08Z |
| format | Article |
| id | doaj.art-d2b5f38872bc418ea661b76170b9fd17 |
| institution | Directory Open Access Journal |
| issn | 2624-5175 |
| language | English |
| last_indexed | 2024-03-08T20:54:08Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Clocks & Sleep |
| spelling | doaj.art-d2b5f38872bc418ea661b76170b9fd172023-12-22T14:01:05ZengMDPI AGClocks & Sleep2624-51752023-12-015480683010.3390/clockssleep5040052Integrative Lighting Aimed at Patients with Psychiatric and Neurological DisordersXinxi Zeng0Thierry Silvio Claude Soreze1Martin Ballegaard2Paul Michael Petersen3Department of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kongens Lyngby, DenmarkDepartment of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kongens Lyngby, DenmarkDepartment of Neurology, Copenhagen University Hospital—Zealand University Hospital Roskilde, 4000 Roskilde, DenmarkDepartment of Electrical and Photonics Engineering, Technical University of Denmark, 2800 Kongens Lyngby, DenmarkThe purpose of this paper is to investigate the impact of circadian lighting-induced melatonin suppression on patients with psychiatric and neurological disorders in hospital wards by using an ad-hoc metrology framework and the subsequent metrics formalized by the CIE in 2018. A measurement scheme was conducted in hospital ward rooms in the Department of Neurology, Zealand University Hospital, at Roskilde in Denmark, to evaluate the photometric and colorimetric characteristics of the lighting system, as well as its influence on the circadian rhythm of the occupants. The measurement scheme included point measurements and data logging, using a spectrophotometer mounted on a tripod with adjustable height to assess the newly installed circadian lighting system. The measured spectra were uploaded to the Luox platform to calculate illuminance, CCT, MEDI, etc., in accordance with the CIE S026 standard. Furthermore, the MLIT based on MEDI data logging results was calculated. In addition to CIE S026, we have investigated the usefulness of melatonin suppression models for the assessment of circadian performance regarding measured light. From the results, the lighting conditions in the patient room for both minimal and abundant daylight access were evaluated and compared; we found that access to daylight is essential for both illumination and circadian entrainment. It can be concluded that the measurement scheme, together with the use of the Luox platform and Canva template, is suitable for the accurate and satisfactory measurement of integrative lighting that aligns with CIE requirements and recommendations.https://www.mdpi.com/2624-5175/5/4/52CIE S026circadianMEDIintegrative lightingMLITTAT |
| spellingShingle | Xinxi Zeng Thierry Silvio Claude Soreze Martin Ballegaard Paul Michael Petersen Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders Clocks & Sleep CIE S026 circadian MEDI integrative lighting MLIT TAT |
| title | Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders |
| title_full | Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders |
| title_fullStr | Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders |
| title_full_unstemmed | Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders |
| title_short | Integrative Lighting Aimed at Patients with Psychiatric and Neurological Disorders |
| title_sort | integrative lighting aimed at patients with psychiatric and neurological disorders |
| topic | CIE S026 circadian MEDI integrative lighting MLIT TAT |
| url | https://www.mdpi.com/2624-5175/5/4/52 |
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