字符的知觉表征及其启动

PERCEPTUAL REPRESENTATION OF WORDS AND VISUAL, AUDITORY PRIMING

实验以英文单词，汉字和图片为材料，采用速示补笔测验测量了大脑左右半球的启动效应。结果是，如果学习与测验的字体和大小不变，则视觉启动右半球高于左半球。其他材料不产生这种效应。这表明，至少有一个分离的系统对构成启动的汉字的视觉表征进行编码，此系统在右半球表征形状特异形状特异信息更有效；对字符抽象特征的表征，两半球无显著差异，速示补笔测量的是前语义水平的知觉表征，是一种知觉（数据驱动）内隐记忆测验。

Two experiments were conducted to examine the priming effect of the right cerebral hemisphere (RH) and the left cerebral hemisphere (LH) by using English words, Chinese characters and pictures as experimental material.Subjects received fragment completion & identification test. Results of the two experiments indicated that: if the size and form of the Chinese characters were the same, the visual priming of RH was larger than that of LH. In contrast, neither English words nor the pictures’priming fo RH was large than that of LH. These data suggested that at least there was a separate system encoding the visual representations of Chinese characters that produced priming. The system that was more effective in RH was better at the representation of form- specific information. For the representation of abstract-form information of Chinese characters, the difference between RH and LH was not significant. The fragment completion & identification test of Chinese characters was capable of measuring visual perceptual representation and it was a perceptual (or data-driven) implicit memory test.