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Study on the Effect of Cognitive Function by Color Light Stimulation  

Chong, Woo-Suk (전북대학교 대학원 의용생체공학과)
Yu, Mi (전북대학교 대학원 의용생체공학과)
Kwon, Tae-Kyu (전북대학교 생체정보공학부)
Kim, Nam-Gyun (전북대학교 생체정보공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.24, no.10, 2007 , pp. 131-136 More about this Journal
Abstract
In this paper, we estimated the effects of different color stimulation on the cognitive function of human quantitatively. For the stimulations we used color lights with 6 color filters such as red, yellow, green, blue, violet and white. The experiment was performed in a soundproof chamber. 50 young male and female subjects were participated in the experiment. To find the appropriate color cognitive function, the endogenous visuospatial attention task(EVAT) and one back working memory task(OWMT) were performed. The reaction time and accuracy degree were measured. The results showed that the reaction time of EVAT was the fastest and the accuracy degree of attention task was the highest in green environment. The reaction time of OWMT was the fastest in yellow and the accuracy degree of memory task was the highest in blue. For physiological parameters, we measured electrocardiogram(ECG) and HRV spectrum analysis, HF/LF color environment. These results can be used as an indicator in the design of color environment and clinical applications.
Keywords
Color environment; Endogenous visuospatial attention task (EVAT); One back working memory task (OWMT); electrocardiogram (ECG);
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