Cheal M, Chastain G
Arizona State University, Tempe, USA.
Percept Psychophys. 1998 Jul;60(5):873-87. doi: 10.3758/bf03206070.
A multiple-element precue (MEP), in which one unique element defines the actual precue, results in efficient precuing for identification of a target. The time course for identification in this case is similar to that for a central precue, even though it is presented peripherally (Chastain, 1996; Chastain & Cheal, in press). Five experiments were conducted to gain further information on the function of MEPs and to question what advantage prior knowledge of the precue may give. In Experiments 1 and 2, it was shown that for "pop-out" features, accuracy of identification of a target was higher if the precue type was known in advance. In contrast, as shown in Experiments 3, 4, and 5, when the precue was defined by apparent motion, there was no difference in accuracy due to advanced knowledge of the precue. Further, accuracy was considerably better for motion precues than for stationary precues.
一种多元素预提示（MEP），其中一个独特元素定义实际预提示，可实现对目标识别的高效预提示。在这种情况下，识别的时间进程与中央预提示相似，尽管它是在外周呈现的（查斯坦，1996年；查斯坦和谢尔，即将发表）。进行了五项实验，以获取关于MEP功能的更多信息，并探究预提示的先验知识可能带来何种优势。在实验1和实验2中，结果表明，对于“突出”特征，如果预提示类型提前已知，目标识别的准确率会更高。相比之下，如实验3、实验4和实验5所示，当预提示由表观运动定义时，由于对预提示的先验知识，准确率没有差异。此外，运动预提示的准确率比静止预提示的准确率要好得多。
