ABSTRACT

The two hemispheres may have different strategies allowing various perceptions to be processed independently, such as near and far, ambient and focal, and low-level subcortical communications, contrasted to high-level cognition. Thirty-two Chinese characters, half high frequency and half low frequency, were presented in three versions: Large, Small and Overlap version. The Overlap version was a large character overlapped by a small identical character in the centre. And the centre was emptied beforehand to make sure that the small character was not obscured by the large one. A fixation point was presented in the centre of the monitor for 500 msec, followed by a character lasted for 150 msec, and then followed by a mask picture lasted for 500 msec. That large characters were recognized slightly quicker than small characters supports our hypothesis that the visual attention was more likely caught by larger objects, compared to small objects.