Category learning and change: differences in sensitivity to information that enhances or reduces intercategory distinctions.
Category learning and change: differences in sensitivity to information that enhances or reduces intercategory distinctions.
复制标题
类别学习和变化：对增强或减少类别间差异的信息的敏感性差异。
DOI：
10.1037//0022-3514.56.6.866
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发表时间：
1989
影响因子：
7.6
通讯作者：
Sriram,N
中科院分区：
文献类型：
--
作者：
Krueger,J;Rothbart,M;Sriram,N
我们考察了范畴抽象对新的相关信息的顺应性。在实验1中，学生通过定期估计每组数字的累积均值来形成2组数字的印象。在程序的前半部分，2个平均值在数学上稳定。在手术的后半部分，修改了1组的平均值，另一组的平均值保持不变。我们预测并发现，当两个类别之间的平均差异增强时，修改后的类别的估计值变化更大。实验二表明，重读效应是由类别学习（第一阶段）和类别转换（第二阶段）两个阶段共同作用的结果。实验3复制的效果与人的类别。类别强调的相关性进行了讨论，相对于社会信念的可修改性。
We examined the amenability of abstractions of categories to new and relevant information. In Experiment 1, Ss formed impressions of 2 sets of numbers by periodically estimating the cumulative means of each set. During the 1st half of the procedure, the 2 means were mathematically stable. During the 2nd half of the procedure, the mean of 1 set was modified and the mean of the other set remained unchanged. We predicted and found that the resultant estimates for the modified category changed more when the mean difference between the 2 categories was enhanced than when it was reduced. Experiment 2 suggested that the accentuation effect results from a 2-stage process of category learning (Stage 1) and category change (Stage 2). Experiment 3 replicated the effect with person categories. The relevance of category accentuation is discussed with respect to the modifiability of social beliefs.