Inhoff A W, Topolski R, Wang J
Dept. of Psychology, State University of New York, Binghamton 13902-6000.
Acta Psychol (Amst). 1992 Oct;81(1):1-21. doi: 10.1016/0001-6918(92)90008-2.
Three experiments examined saccade programming during short duration fixations between 50 ms and 150 ms. In experiment 1, subjects copy typed text, in experiment 2, subjects read and executed a letter detection task, and in experiment 3, subjects read for comprehension only. Fixation duration had no effect on the size of the departing saccade in the copy typing task; however, saccades leaving short duration fixations were larger than saccades leaving all other fixation durations in the letter detection task and smaller than saccades leaving long fixation durations in the standard reading task. Within Morrison's (1984) model, these results imply, first, that consecutive shifts of attention during a fixation can take different directions and, second, that successive shifts of attention during a fixation support different purposes. Within Fischer's (1986, in press) model, the results imply that the engagement/disengagement of attention and saccade programming do not constitute independent events.
三项实验研究了在50毫秒至150毫秒的短时间注视过程中的扫视编程。在实验1中，受试者复制打印文本；在实验2中，受试者阅读并执行字母检测任务；在实验3中，受试者仅为理解而阅读。注视持续时间对复制打印任务中起始扫视的大小没有影响；然而，在字母检测任务中，离开短时间注视的扫视比离开所有其他注视持续时间的扫视更大，而在标准阅读任务中，离开短时间注视的扫视比离开长时间注视的扫视更小。在莫里森（1984）的模型中，这些结果首先意味着在一次注视过程中连续的注意力转移可以朝不同方向进行，其次意味着在一次注视过程中连续的注意力转移支持不同的目的。在菲舍尔（1986年，即将出版）的模型中，这些结果意味着注意力的参与/脱离和扫视编程并不构成独立的事件。
