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Brain Waves Evoked by the Changes of Background Pastel Colors with a Pattern of Achromatic Color

무채색 무늬가 포함된 배경색의 파스텔색상에 따른 뇌파반응

  • Lee, Heeran (Dept. of Clothing and Textiles, Chungnam National University) ;
  • Kim, Soyoung (Dept. of Clothing and Textiles, Chungnam National University) ;
  • Kim, Kiseong (Dept. of Bio and Brain Engineering, KAIST) ;
  • Hong, Kyunghi (Dept. of Clothing and Textiles, Chungnam National University)
  • 이희란 (충남대학교 의류학과) ;
  • 김소영 (충남대학교 의류학과) ;
  • 김기성 (카이스트 바이오 및 뇌공학과) ;
  • 홍경희 (충남대학교 의류학과)
  • Received : 2017.09.06
  • Accepted : 2017.09.28
  • Published : 2017.10.31

Abstract

Recently, consumers' evaluation and purchase of online design has been increasing due to the popularization of designing through personal computers, but there has not been enough studies on consumers' brain wave responses depending on the change of PC monitor's color. Therefore, this study investigated how brain waves changed when different background colors with gray patterns were presented through PC monitors. Six background colors with same tone of slightly low saturation were selected, including ivory, yellow, pink, green, blue and pure white as a base color. The brightness and characteristics of color used were analyzed using the luminance meter and color scales. Brain wave was measured by EEG measurement equipment. Brain wave measurement was carried out with 9 subjects at 6 points: F3, F4, T3, T4, O1, and O2. Stimuli were shown for 15 seconds each and black screens were displayed for 15 seconds between each stimulus. As results, the brain waves at O1 responded sensitively by different background colors, followed by F4 and T4. Brain index such as 'RT', 'RA', 'RG', 'RSA', and 'RAHB' showed significant differences depending on the background color at O1, whereas 'RST' differed at F4. Yellow and blue backgrounds pair was the only stimuli that showed significant differences in six brain indices mentioned. Yellow background had higher value of 'RG' at O1 and higher 'RST' at F4, indicating yellow background enhanced concentration. Blue background activated 'RT', 'RA', 'RSA', 'RAHB' at O1, meaning blue background induced calm and stable state.

Keywords

background color;brain wave;stimuli by PC monitor

Acknowledgement

Supported by : 한국연구재단

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