注意定向方式对立体视觉加工的影响

The Effect of Attention Orienting on Stereopsis

研究采用边缘位置提示与中央符号提示,探讨了外源性与内源性注意定向对立体视觉加工的影响。结果发现:(1)短SOA下,非预测性边缘位置线索对2D和3D空间中的视觉辨认任务均产生了启动效应。3D空间中线索提示诱发了注意的自动定向,注意在深度面间的转移需要耗费一定时间。(2)长SOA下,2D平面上非预测性边缘位置线索导致了返回抑制,3D空间中的返回抑制波及至不同的深度面上。(3)不同SOA下,3D空间中预测性中央符号线索对视觉辨认任务均产生了启动效应,其效应量不随SOA延长而变化。

Adopting a 3D spatial cueing paradigm, this research explored how different kinds of attention orienting influenced stereopsis. The results showed that （1） At the short SOA, the uninformative peripheral cue produced a facilitative effect on the subsequent discrimination task in both the 3D and the 2D conditions. The peripheral cue elicited the automatic orientation of attention inthe 3D condition, and it took some time to shift attention from one depth plane to another; （2） At the long SOA, the uninformative peripheral cue elicited the classic IOR in the 2D condition; Furthermore, the IOR effect spread across different depth planes in the 3D condition. （3） At both the short and the long SOA, the predictive central symbolic cue produced a facilitative effect on the subsequent discrimination task in the 3D condition, and the difference between the two treatments was not statistically significant.