注意定势对基于空间位置的返回抑制的影响

将研究注意定势的比例控制范式与基于空间位置的返回抑制范式相结合。系统地探讨了与空间位置相关的注意定势对基于空间位置的返回抑制的影响。结果表明。在20％和50％有效条件下均出现了显著的返回抑制。但由于注意定势的作用。20％有效条件下的返回抑制量要明显高于50％有效条件；而在80％有效条件下．没有出现返回抑制。并且外显地形成相关注意定势的被试显示出显著的返回抑制的反转。而没有外显地形成相关注意定势的被试则显示出了返回抑制效应。这表明，内源性的注意定势对返回抑制的质和量都有重要影响。适当的注意定势可以在任意方向上改变返回抑制。

The Effects of Attention Set on Spatial-based IOR

Combining the proportion control method and the spatial-based IOR paradigms, this research systematically explored the effects of location-related attention set on spatial-based IOR. The results showed that there were significant IOR under both the 20% valid and the 50% valid conditions. However, the IOR measure under the former was much greater than that under the latter, owing to the attention set. There was no IOR under the 80% valid conditions, while further analysis under this condition showed that those subjects who became explicitly aware of the corresponding attention set showed significant reversal of IOR, whereas the other subjects showed significant IOR. Those results imply that endogenous attention control has vital effects on both the quality and quantity of IOR, and a proper attention set will change IOR in any directions. Finally the authors further discuss the implications of the present results to the research of the time course IOR.