之前的可变性经验影响了未指定的类别的概括
Ann-Katrin Hosch1, Philipp Wirtz1, Bettina von Helversen1
1University of Bremen, Bremen, Germany.
概括
以前的类别经验塑造了一般化. 了解不同类别,特别是具有不同特征的类别,扩大了类别的概括性,影响了认知过程.
科学领域:
- 认知心理学 认知心理学
- 感知和认知 感知和认知
- 人类行为人类行为.
背景情况:
- 类别的变化影响了概括,但以前的经验也塑造了对类别多样性的期望.
- 了解以前的学习如何影响当前的分类对于认知科学至关重要.
研究的目的:
- 调查先前的类别表示是否可以影响新分类任务中的概括.
- 为了确定同质与多样化的类别对一般化产生影响.
- 探索特征多样性与范例多样性在类别概括中的作用.
主要方法:
- 参与者完成了一项A/非A分类任务,在一个涉及同质或多样化的非A类别的原始化阶段之后.
- 通过隐含的转移和明确的指示来操纵先前经验的影响.
- 第二个实验区分了非A类的特征多样性和样本多样性条件.
主要成果:
- 一个多样化的非A类型的初始化导致了与同质的非A类型初始化相比,非A类别的更广泛的泛化.
- 这种扩大泛化与该类别内的特征多样性有关,而不是示例多样性.
- 之前的分类经验可以改变类别表示,影响后续的概括.
结论:
- 类别的概括在很大程度上受到先前的学习经验和类别表示的性质的影响.
- 一个类别内的特征多样性是观察以前归因于不同类别的更广泛的概括效应的关键.
- 这些发现促进了对类别学习,概括以及先前知识对认知过程的影响的理解.
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