Greene R L, Thapar A
Department of Psychology, Case Western Reserve University, Cleveland, Ohio 44106.
J Exp Psychol Learn Mem Cogn. 1994 Jul;20(4):946-52. doi: 10.1037//0278-7393.20.4.946.
In recognition, types of stimuli that are relatively easy to classify as old when old are also relatively easy to classify as new when new. The experiments reported here extend this mirror effect to discriminations among above-zero situational frequencies. Frequency discrimination exhibits a mirror effect when words are compared with nonwords or when low-linguistic-frequency words are compared with high-linguistic-frequency words. Accurate knowledge concerning the relative memorability of test items is neither necessary nor sufficient for the presence of a mirror effect.
值得注意的是,那些在呈现为旧刺激时相对容易被归类为旧刺激的刺激类型,在呈现为新刺激时也相对容易被归类为新刺激。此处报告的实验将这种镜像效应扩展到对高于零的情境频率的辨别上。当将单词与非单词进行比较,或者将低语言频率的单词与高语言频率的单词进行比较时,频率辨别会呈现出镜像效应。对于镜像效应的存在而言,关于测试项目相对可记忆性的准确知识既非必要条件也非充分条件。