Tritan discriminations by 1- and 2-month-old human infants.

Abstract

The capacity of 1- and 2-month-old infants to make a tritan discrimination between a 4 degree, 416 nm test field and a 547 nm surround was tested by means of the forced-choice preferential looking technique. Most of the 2-month-olds and the other 1-month-olds made the tritan discrimination and must therefore have functional SWS cones. Most of the youngest 1-month-olds failed to make the tritan discrimination and therefore either do not encode or do not preserve the information ordinarily encoded by SWS cones. The implications of these data and the prior data of Hamer et al. [Vision Res. 22, 575-587 (1982)] are discussed in relation to color theory.

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@article{Varner1985TritanDB, title={Tritan discriminations by 1- and 2-month-old human infants.}, author={Dwight L Varner and Jennie Cook and Marilyn E. Schneck and Maurice McDonald and Davida Y. Teller}, journal={Vision research}, year={1985}, volume={25 6}, pages={821-31} }