University of Missouri, Columbia, MO65211, USA.
J Exp Psychol Learn Mem Cogn. 2010 Jan;36(1):224-32. doi: 10.1037/a0017682.
One of the most influential findings in the study of recognition memory is that receiver operating characteristic (ROC) curves are asymmetric about the negative diagonal. This result has led to the rejection of the equal-variance signal detection model of recognition memory and has provided motivation for more complex models, such as the unequal-variance signal detection and dual-process models. Here, the authors test the possibility that previous demonstrations of ROC asymmetry do not reflect mnemonic process but rather reflect distortions due to averaging data over items. Application of a hierarchical unequal-variance signal detection model reveals that asymmetries are in fact a real phenomenon and do not reflect distortions from averaging data. (PsycINFO Database Record (c) 2009 APA, all rights reserved).
该研究中关于再认记忆最具影响力的发现之一是，接受者操作特征（ROC）曲线关于负对角线是不对称的。这一结果导致了对再认记忆的等方差信号检测模型的否定，并为更复杂的模型提供了动力，如不等方差信号检测和双加工模型。在这里，作者检验了之前关于 ROC 不对称性的证明是否不反映记忆过程，而是反映了由于对项目进行数据平均而产生的扭曲的可能性。应用分层不等方差信号检测模型表明，不对称实际上是一种真实现象，并不反映数据平均的扭曲。（APA，2009，保留所有权利）。
