Exposure to different frequencies of light affects physiological mechanisms in the human body. We wish to explore the possible effects of different light temperature on brain activity during tasks which require attention and problem solving. Using EEG measurements to record brain activity in one short wavelength light setting, and one long wavelength light setting, we found significant differences between the two settings, suggesting that the long wavelength light allows better cognitive performance. However, this cannot be taken as evidence that the human brain is directly influenced by light temperature, because the illumination in the two settings was different. This study definitely leaves room for further research on the effect of long or short wavelength light on cognitive performance, both in clinical as well as more reality-based, classroom- or office-like settings.

Final report: PDF

Mbili.pdf