Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Analysis of EEG Relaxation-Arousal Reaction to the Window-To-Wall Ratio of Individual Rooms of A Postpartum Care Center Using EEG-VR

EEG-VR을 활용한 산후조리원 개별실의 창면적비에 대한 뇌파의 이완-각성 반응 분석

  • 김상희 (경북대 공과대학 건축학과) ;
  • 이권형 (동의대 건축학과) ;
  • 추승연 (경북대 공과대학 건축학부)
  • Received : 2020.12.18
  • Accepted : 2021.02.22
  • Published : 2021.03.30
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Abstract

This study was carried out to identify differences in users' relaxation-arousal reaction to the window-to-wall ratio of spaces with different areas through EEG analysis and suggest scientific data that can be used for architectural design. For this study, an EEG experiment of modeling image stimuli in individual rooms of a postpartum care center was performed using VR(Virtual Reality) and dry EEG equipment, and EEG data of the experiment participants were analyzed using RAB indicators(the ratio of alpha waves to beta waves). The study results are as follows. First, with regard to changes in the window-to-wall ratio applied to a minimum area, four channels with a window-to-wall ratio of 30%, 70% and 100% showed statistically significant differences in relaxation-arousal reaction before and after stimulation, and they all had arousal reaction. Second, with regard to changes in the window-to-wall ratio applied to a facility mean area, two channels with a window-to-wall ratio of 70% and 100% showed statistically significant differences in relaxation-arousal reaction before and after stimulation, and they all had arousal reaction. Third, when examining whether the same window-to-wall ratio showed differences in relaxation-arousal reaction in spaces with different areas, four channels with a window-to-wall ratio of 0%, 30% and 100% showed statistically significant differences, which means even though the window-to-wall ratio is equal, relaxation-arousal reaction may vary depending on the area. Lastly, the analysis results displayed that for making users feel comfortable with individual rooms of a postpartum care center, there was a need to avoid a window-to-wall ratio of 30% and 70% and above when designing a minimum area close to 6.3㎡, and that there was a need to avoid a big window-to-wall ratio of 70% and above when designing a facility mean area close to 10.34㎡. In addition, it was found that a window-to-wall ratio of 50% generated arousal reaction least in these two areas, which means a window-to-wall ratio of almost 50% can make users feel comfortable.

Keywords

References

  1. Benjamin, J. G., Stephen, D. M., Karen, J. M., Joao, J., Ian, C., Maria, W., & Simon, Ha. (2019). Alpha/beta power decreases track the fidelity of stimulus-specific information, eLife. 8, e49562. https://doi.org/10.7554/elife.49562
  2. Emanuel, T., Emilia, Qu., & Joao, S. (2016). Changes in EEG amplitude (Alpha and Beta waves) with Thermal environment, Dyna. 83(197), 87-93. https://doi.org/10.15446/dyna.v83n197.57590
  3. Esther M, S. (2013). HEALING SPACES: The Sciences of Place and Well-beingm, Seoul, The Quest Publishers, 193-344.
  4. Ha, J., & Park, S. (2107). Assessment of Color Affect on the Indoor Color Schemes and Illuminance Change, Journal of the Architectural Institute of Korea, Planning and Design Section, 33(10), 57-765.
  5. Hwang, M. (2017). A study on EEG arousal effect on stimulation of color, Ph.D. Dissertation, Kyungsung University, 132.
  6. Jeon, S. (2017). The guidelines for interior architecture design of public geriatric long-term care hospital, Ph.D. Dissertation, Hanyang University, 245.
  7. Jeong, M. (2015). Nursing Home Environment with Positive Distraction for Reduction of Chronic Pain and Healing, Journal of Korea Institute of Interior Design, 24(2), 206-216. https://doi.org/10.14774/JKIID.2015.24.2.206
  8. Jo, J. (2010). A Study on the Development of Assessment Procedure for Therapeutic Environment in the Elderly Care Facility with Dementia, Ph.D. Dissertation, Chonnam National University, 228.
  9. Jo, M., Jeong, A., & Kong, S. (2015). Study about apply sensibility design element to treatment circumstances for autistic children, Journal of Korea Institute of Youth Faacility & Environment, 13(4), 171-182.
  10. Kim, H., & Lee, N. (2001). The Study on the Space Organization and Programming of Postpartum Care Center, Journal of the Korea Institute of Healthcare Architecture, 7(2), 27-36.
  11. Kim, I., Kang, Y., Hwa, N., & Do, K. (2014). A Study on the Changes of Openness in Relation to Different Window to Wall Ratio of Buildings in Coastal areas, Journal of the Regional Association of Architectural Institute of Korea, 16(3), 235-243.
  12. Kim, J. (2019). Analysis of user EEG according to the changes of architectural elements of single person household, Thesis, Hanyang University, 68.
  13. Kim, M. (2013). A Comparative Study of Postpartum Stress, Postpartum Depression, Postpartum Discomfort and Postpartum Activity, Between Women who Used and those Women did not Used Sanhujori Facilities, Kyungsang University, 71.
  14. Kim, T. (2003). Perception Analysis with Composing of Simulation and Measuring of Human Brain Electroencephalogram in Interior Space, Journal of the Korean Institute of Interior Design, (36), 128-135.
  15. Kim, Y., Shin, D., & Kim, J. (2019). A study on the characteristics on brain wave of indoor space lighting by EEG experiment, Journal of Korean Institute of Spatial Design, 14(2), 71-80. https://doi.org/10.35216/kisd.2019.14.2.71
  16. Ko, G. (2020). Healing Environment Design Strategy For Geriatric Hospital Bedroom through Developing the Checklist Applying WELL Building Standard, Thesis, Youngnam University, 234.
  17. Lee, H. (2018). A Exploratory Study of the Concept and Theories of the Healing Environment for Mental Health Enhancement, Journal of Society of Design Convergence, 17(3), 109-123. https://doi.org/10.31678/SDC.70.7
  18. Lee, H., Kim S., Kim, K., & Hong, K. (2017). Brain Waves Evoked by the Changes of Background Pastel Colors with a Pattern of Achromatic Color, The Society of Fashion & Textile Industry, 19(5), 653-660
  19. Lee, J., Ryu, J., Kim, H., & Lee, H. (2014). An Analysis of Human Physiological Responses to Apply Color to the Indoor Living Space, Journal of the Korea Socity of Colour Studies, 28(1), 96-105. https://doi.org/10.17289/jkscs.28.1.201402.96
  20. Lee, K., & Lee, D. (2004). Development of a CAVE type Virtual Reality System for 3-D Spatial Data Visualization, Journal of the Korean Society of Exploration Geophysicists, 7(2), 117-120.
  21. Maryam, B. Javad, H. Abbas, Y., & Klaus, G. (2017). Walking through Architectural Space: The Impact of Interior Forms on Human Brain Dynamics. Frontiers in Human Neuroscience. 11, 477. https://doi.org/10.3389/fnhum.2017.00477
  22. Nikravan, M. (2014). The impact of floor-to-ceiling height on human comfort. Asian journal of civil engineering(Building and housing). 15(2), 277-287.
  23. Oh, A. (2017). Extraction of healing concepts and elements by space inherent in environment planning guidelines for frail elderly, Thesis, Yonsei University, 135.
  24. Shin, D., & Kim, J. (2017). A Study on Pure Color Response by EEG Experiment for Spatial Environment, Journal of Korean Institute of Spatial Design, 12(5), 85-93. https://doi.org/10.35216/kisd.2017.12.5.85
  25. Shin, J., Chun, S., & Lee, C. (2013). Analysis of the Effect on Attention and Relaxation Level by Correlated Color Temperature and Illuminance of LED Lighting using EEG Signal, Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 27(5), 9-17. https://doi.org/10.5207/JIEIE.2013.27.5.009
  26. Son, Y., & Hwang, Y. (2011). A Case Study on Women's Hospitals with Consideration of Women's Characteristics, Journal of Korean Institute of Spatial Design, 6(3), 123-132. https://doi.org/10.35216/kisd.2011.6.3.123
  27. Song, B., & Ji, S. (2018). Comparative Study on Perceptual characteristic of Unit Space Using Brainwave Test, Journal of the Korea Society of Art&Design, 21(3), 87-101.
  28. Song, H. (2009). A Study on the Evaluation of Treatment Conditions of the Nursing Homes based on the Characteristics of the Elderly, Thesis, Chung-Ang University, 101.
  29. Sosiedka, I., Tukaiev, S., & Zima, I. (2014). Poster Communications: EEG ratio markers for the effect of emotional valence of olfactory stimuli. Physiology. Proc Physiol Soc 31. PCB063.
  30. Ulrich, R. S. (1984). View througt a window may influence recovery from surgery, Science, 224(4647), 420-421. https://doi.org/10.1126/science.6143402
  31. Wolfram B., & Richard, W. B. (2008). The Psychophysiology of Emotion, arousal, and Personality methods and Models. Handbook of Digital Human Modeling: Research for Applied Ergonomics and Human Factors Engineering, In D. Vincent G(Ed), 1, CRC Press, Boca Raton, London, New York, 35-1-9.
  32. Yi, W., Siti, A. (2020), Electroencephalogram (EEG) stress analysis on alpha/beta ratio and theta/beta ratio. Indonesian Journal of Electrical Engineering and Computer Science, 12(6), 175-182.
  33. Yoo, S. (2010). A study on the environmental evaluations and suggestions of nursing homes in the aspects of environmental psychological behaviors of elderly with dementia, Thesis, Chung-Ang University, 105.