Xu Xu, Wiemer-Hastings Katja, Magliano Joseph P, Birner Betty
School of Behavioral Sciences and Education, Pennsylvania State University, Harrisburg, Pennsylvania 17057, USA.
Mem Cognit. 2007 Mar;35(2):317-25. doi: 10.3758/bf03193452.
Rips and Estin (1998) provided evidence that mental events such as dreaming are more homogeneous than physical events such as checking out a book; that is, their parts are more difficult to distinguish. In their experiment, participants listed more distinctive properties for the parts of physical events than for the parts of mental events. However, the physicality of stimuli was confounded with temporal aspects. Mental stimuli tended to be processes, and physical stimuli, events. This study tested homogeneity with new stimuli separating out the factors of physicality and aspect. Consistently, both physicality and aspect had significant effects on the perceived homogeneity of activities, as measured by the number of listed parts, the number of distinctive properties of each part, and homogeneity ratings. The study shows that homogeneity is strongly influenced by aspect but that physicality remains a robust factor for homogeneity, even after taking aspect into account.
里普斯和埃斯汀（1998年）提供的证据表明，诸如做梦之类的心理事件比诸如借书之类的物理事件更具同质性；也就是说，它们的各个部分更难区分。在他们的实验中，参与者为物理事件的各个部分列出的独特属性比为心理事件的各个部分列出的更多。然而，刺激的物理性与时间因素混淆在一起。心理刺激往往是过程，而物理刺激是事件。本研究使用新的刺激物测试同质性，将物理性和方面的因素分开。一致的是，物理性和方面对活动的感知同质性都有显著影响，这通过列出的部分数量、每个部分的独特属性数量和同质性评级来衡量。该研究表明，同质性受方面的强烈影响，但即使在考虑了方面之后，物理性仍然是同质性的一个强大因素。
