作　　者： ; ;

机构地区： 湛江师范学院教育科学学院

出　　处： 《湛江师范学院学报》 2006年第3期138-144,共7页

摘　　要： 考察等亮度条件下新旧客体之间的范畴关系对预搜索(preview search)的影响.以字母和数字为范畴材料,以搜索一个靶子字母(H)或数字(6)为任务,以预搜索为实验范式.结果表明:(1)当旧客体为数字而靶子为字母时,产生了完整的预搜索效应;(2)当旧客体为字母而靶子为数字时,只产生了部分预搜索效应.这些结果显示,在等亮度条件下,范畴信息有助于产生预搜索效应,而且存在非对称性. The effect of categorical rehtionship between old and new objects on preview scareh at isoluminance Was studied. The categorical stimuli were letters and numbers. Subjects＇ task was to detect a target letter （H） or number （6）. The experimental method was a preview search paradigm. The results showed that： a） When old objects were numbers and the target was an H, there was perfect preview effect （ Experiment 1） ; b） When old objects were letters and the target was a 6, there was part preview effect （Experiment 2）. The results suggest that categorical informtion can influence preview search even at isoluminance and there be an asymmetry in categorical preview effect.

关 键 词： 视觉注意 预搜索 新信息 范畴抑制 非对称性

领　　域： [哲学宗教] [哲学宗教]