Burgund E D, Marsolek C J
Department of Psychology, University of Minnesota, Minneapolis, MN 55455, USA.
Brain Cogn. 1997 Nov;35(2):239-58. doi: 10.1006/brcg.1997.0940.
In a form-specific perceptual identification task, subjects identify and write letter strings in the same letter case as they appear on a computer display. Letter-case-specific repetition priming was observed in this task when test items were presented directly to the right hemisphere, but not when they were presented directly to the left hemisphere, similar to results in previous word-stem completion experiments. This pattern of results was not obtained in a standard perceptual identification task. Results indicate that a specific visual-form subsystem, but not an abstract visual-form subsystem, operates more effectively in the right hemisphere than in the left, and task demands greatly affect which subsystems are recruited in different priming tests.
在一项特定形式的知觉识别任务中，受试者识别并书写与计算机显示屏上呈现的字母大小写相同的字母串。当测试项目直接呈现给右半球时，在该任务中观察到了特定字母大小写的重复启动效应，但当测试项目直接呈现给左半球时则未观察到，这与之前词干补全实验的结果相似。在标准知觉识别任务中未得到这种结果模式。结果表明，一个特定的视觉形式子系统而非抽象视觉形式子系统在右半球比在左半球运行得更有效，并且任务要求极大地影响了在不同启动测试中调用哪些子系统。
