中国科学院心理研究所机构知识库

以中国汉字为材料，考察不同中数比率（0.6,0.8和1.0）时，系列位置曲线不同部分性质的分化。结果说明，系列位置曲线不同部分的性质，是项目问隔时间和其时间变化的中数比率共同作用的结果，其中项目间隔时间变化的中数比率所起作用更大。在项目呈现时间相同时，项目间隔时间长短，决定项目之间的辨别程度，也影响到对项目正确提取的百分数。

Using the forward and backward associative method proposed by Liu Inmao, we examined the nature of primacy and recency effect of the serial position effects in different median ratio（0.6, 0.8 and 1.0） with Chinese characters. The results demonstrated that the nature of the serial position effects depended on the item interval and the median ratio. The median ratio took a more important role than the item interval. Under the same presentation time, the degree of distinctiveness of item and the percentage of retrieval were determined by the item interval.