It has been reported that the colors perceived behind closed eyes provide an indication of the psychophysical state of a subject. We discuss this phenomenon in the light of recently developed approaches to living organisms, based on the interplay between matter organization, biochemistry and electrodynamics. "When there is no energy, there is no color, no shape, no life." Caravaggio (1571-1610).
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Bajpai et al. (2010) studied this question.
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