Color is not to be taken lightly: The difficulties of showing affective influences of colored light

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Nowadays, computing is becoming affective as well as ubiquitous, and might therefore be used to create smart environments. So far, it seems that combining affective and ubiquitous computing has not yet been done. One medium which might be of interest to be integrated in affective ubiquitous computing is colored light. However, the influence of colored light on affect needs to be clarified first. This thesis presents an experiment designed to address this issue. The effects of saturation, lightness, and hue on both subjective evaluations and psychophysiological measurements were investigated. Pictorial primes were used to associate color with an affective load. Results showed that priming had no effect on either the subjective evaluations or the psychophysiological measurements. Furthermore, the psychophysiological measurements were not severely affected by the colored lights: only skin conductance showed slight effects. On the other hand, subjective valence and arousal showed numerous effects of the colored lights. The question remains whether these latter effects are reflections of experienced feelings, or just assessments of based on personal experience without instantaneously experiencing these feelings.
Faculteit der Sociale Wetenschappen