The Role of Stimulus Factors in Making Categorical and Coordinate Spatial Judgments
The Role of Stimulus Factors in Making Categorical and Coordinate Spatial Judgments
复制标题
刺激因素在分类和协调空间判断中的作用
作者：
D. Wilkinson;N. Donnelly
我们报告了三个研究分类和协调加工的偏侧化的实验。在所有的实验中，参与者判断一个点相对于一条线的位置。我们操纵了显示亮度（控制对比度）、极性（黑白与黑白显示）和曝光时间（100、150和200毫秒）。结果显示，只有在高度规定的条件下，左视野-右半球对坐标判断有优势。我们认为刺激和程序因素在决定半球的任务交互中是至关重要的。
We report three experiments which investigate the lateralization of categorical and coordinate processing. In all experiments, participants judged the position of a dot relative to a line. We manipulated display luminance (controlling for contrast), polarity (black-on-white versus white-on-black displays), and exposure duration (100, 150, and 200 ms). The results showed a left visual field-right hemisphere advantage for coordinate judgments, but only under highly prescribed conditions. We argue that stimulus and procedural factors are critical in determining the hemisphere by task interaction.