Varner D, Cook J E, Schneck M E, McDonald M A, Teller D Y
Vision Res. 1985;25(6):821-31. doi: 10.1016/0042-6989(85)90190-7.
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.
采用强迫选择优先注视技术，测试了1个月和2个月大婴儿区分4度、416纳米测试视野与547纳米周围环境的蓝黄辨别能力。大多数2个月大的婴儿以及其他1个月大的婴儿做出了蓝黄辨别，因此必定具有功能性的短波敏感（SWS）视锥细胞。大多数最小的1个月大婴儿未能做出蓝黄辨别，因此要么不编码，要么不保留通常由SWS视锥细胞编码的信息。结合颜色理论，讨论了这些数据以及哈默等人[《视觉研究》22, 575 - 587 (1982)]先前数据的意义。
