The effects of treatment room lighting color on time perception and emotion

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  • Han Seulki
    Department of Physical Therapy, U1 University: 12 Youngdong-eup, Youngdong-gun, Chungbuk 370-701, Republic of Korea
  • Lee Daehee
    Department of Physical Therapy, U1 University: 12 Youngdong-eup, Youngdong-gun, Chungbuk 370-701, Republic of Korea

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<p>[Purpose] The purpose of this study was to investigate the perceived treatment times and emotional reactions under different light colors in the treatment room. [Subjects and Methods] Subjects in this study were 20 healthy young students in their 20s. Under each lighting condition (blue, red, white, and yellow) differentiated by color, each subject laid on a therapeutic bed and underwent ultrasound therapy. Subjects were instructed to press a stopwatch every 1 minute, for a total of 5 times, after therapy started according to their perception of time while the stopwatch’s time indicator was blocked. After the experiments, self-administered questionnaires were given to subjects to measure their emotional reactions. [Results] In terms of K-POMS scores, the mood states of depression-dejection, anger-hostility, and confusion-bewilderment were higher scores for blue and red lights compared to yellow light. The mood state of vigor-activity were higher scores for yellow and white lights compared to blue and red lights. [Conclusion] Therefore, it is important to take necessary measures to prevent the negative effects that blue and red light-based therapy can have on patient mood.</p>

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