Jaundiced rats of the Gunn substrain were exposed to light for two to seven hours per day between the third and 25th day of life. Compared to untreated jaundiced subjects, treated rats showed no improvement in their performance on behavioral tests although increased vitality was observed.
Butcher RE, Vorhees CV, Kindt CW, Keenan WJ. An Experimental Evaluation of Phototherapy for Hyperbilirubinemia in the Gunn Rat. Am J Dis Child. 1972;123(6):576–578. doi:10.1001/archpedi.1972.02110120100011
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