The effect of floor surface temperature on occupants' relaxation

Hyeonjeong Lee; Chungyoon Chun

The effect of floor surface temperature on occupants' relaxation

Department of Interior Architecture and Built Environment

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study investigated the effect of floor surface temperature on occupants' relaxation by measuring the electroencephalogram (EEG). 32 healthy male subjects participated, and the climate chamber was controlled to maintain "slightly cool" environment (PMV-0.8). The floor surface temperature was suddenly changed from 22°C to 30°C by using an electric mat. Subjects were exposed to each surface for 20 minutes. The EEG was recorded from two sites on the forehead (Fp1 and Fp2) using the Biopac MP150. A power spectral analysis revealed that the relative theta (9) and alpha (a) power increased and the relative beta (ß) power decreased when the floor surface temperature changed from 22°C to 30°C. This result shows that increasing the floor surface temperature can help occupants relax when the ambient air temperature is maintained at a slightly cool level.

Original language	English
Title of host publication	12th International Conference on Indoor Air Quality and Climate 2011
Pages	712-717
Number of pages	6
Publication status	Published - 2011 Dec 1
Event	12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States Duration: 2011 Jun 5 → 2011 Jun 10

Publication series

Name	12th International Conference on Indoor Air Quality and Climate 2011
Volume	1

Other

Other	12th International Conference on Indoor Air Quality and Climate 2011
Country	United States
City	Austin, TX
Period	11/6/5 → 11/6/10

All Science Journal Classification (ASJC) codes

Pollution

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Lee, H., & Chun, C. (2011). The effect of floor surface temperature on occupants' relaxation. In 12th International Conference on Indoor Air Quality and Climate 2011 (pp. 712-717). (12th International Conference on Indoor Air Quality and Climate 2011; Vol. 1).

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abstract = "This study investigated the effect of floor surface temperature on occupants' relaxation by measuring the electroencephalogram (EEG). 32 healthy male subjects participated, and the climate chamber was controlled to maintain {"}slightly cool{"} environment (PMV-0.8). The floor surface temperature was suddenly changed from 22°C to 30°C by using an electric mat. Subjects were exposed to each surface for 20 minutes. The EEG was recorded from two sites on the forehead (Fp1 and Fp2) using the Biopac MP150. A power spectral analysis revealed that the relative theta (9) and alpha (a) power increased and the relative beta ({\ss}) power decreased when the floor surface temperature changed from 22°C to 30°C. This result shows that increasing the floor surface temperature can help occupants relax when the ambient air temperature is maintained at a slightly cool level.",

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