Greenberg D J, Blue S Z
Child Dev. 1977 Mar;48(1):131-7.
To examine the effects of the number of stimuli presented when the visual-preference technique is used to measure attention in infancy, 2- and 4-month-old infants were randomly assigned to 1 of 3 experimental conditions. In the first condition, infants were shown 3 different checkerboards using the single-stimulus visual-preference methodology; in the second condition, 4 checkerboards; and in the third condition, 5 checkerboards. Infants in both the 3- and 4-pattern conditions were able to order the patterns as predicted by scaling theory. However, there was a significant decrease in the number of infants in the 5-pattern condition who could do so. The results are discussed in terms of both their methodological and theoretical implications.
为了研究在使用视觉偏好技术测量婴儿注意力时呈现的刺激数量的影响，将2个月和4个月大的婴儿随机分配到3种实验条件中的1种。在第一种条件下，使用单刺激视觉偏好方法向婴儿展示3个不同的棋盘；在第二种条件下，展示4个棋盘；在第三种条件下，展示5个棋盘。处于3种图案条件和4种图案条件下的婴儿都能够按照缩放理论预测的那样对图案进行排序。然而，处于5种图案条件下能够做到这一点的婴儿数量显著减少。从方法学和理论意义两方面对结果进行了讨论。
