摘要
用视觉外周呈现光点以控制注意的方法，对识别具体和抽象性汉字的脑功能偏侧化进行了研究。注意线索与刺激字在同侧视野呈现的间隔时间（ＳＯＡ）分为０、２９和５７ｍｓ。结果表明，具体性字在三种ＳＯＡ都表现出右视野左半球优势；而抽象性字在０ｍｓ两视野的识别成绩一样好。因此在偏侧视野识别汉字词中注意和脑结构因素似乎起着综合作用。
The present study investigated the influence of attention on the visual half--field recognition of abstract and concrete Chinese characters. Attention was controlled through a peripheral cue that provided advance knowledge of the location of the forthcoming stimulus. The time period between the onset of the cue and the onset of tile stimulus (Stimulus Onset AsychronySOA) was divided into three respectively of 0, 29,and 57 ms.A right visual field advantage for identifying concrete Chinese characters was evident at three SOA. However,at 0 SOA,abstract characters presented in the two visual fields were identified equally well and a right visual field advantage appeared at longer SOA. Furthermore, the effect of attention on the recognition of concrete characters reached the highest for both right and left visual fields at 29 ms SOA. It is concluded that attention and structural factors play a joint role, depending on the nature of stimulus and the duration of attention.
出处
《心理科学》
CSSCI
CSCD
北大核心
1996年第6期321-325,383,共6页
Journal of Psychological Science
基金
国家自然科学基金
关键词
注意
半视野识别
汉字
attention, visual half recognition, Chinese character.
