多个非线索化位置易代的一项实验研究

AN EXPERIMENTAL STUDY OF THE FACILITATION OF MULTIPLE UNCUED LOCATIONS

现在采用返回抑制范式所进行的空间非信息线索作用的研究，大多以非线索化位置反应时为参照，发现线索化位置的反应先易化后抑制。后者即返回抑制。本研究采用在返回抑制范式上增设中性线索化条件的方法，发现当靶子可以出现的位置为四个时，相对于中性线索化条件，非线索化位置反应快。这种非线索化位置的易化作用是独立存在的，它能使生物体尽快地对出现在多个非线索化位置的靶子作出反应。

In this study a neutral cue condition was added tothe peripheral valid and invalid ones in a typicalparadigm of IOR (inhibition of return). Moreover,the target in the experiment could appear on one offour peripheral locations rather than the usual one oftwo locations. The result showed that the response toa target on the cued location was slower than that onthe uncued location, e. g. there seemed to be an EOR.However, response to a target on the uncued locationswas more rapid in comparison with that on the neutralcued condition. It implied that the facilitation of uncued location (s) existed independently and it supposedly benefited the response to a target on multiple uncued locations in the natural environment.