Reaction time to letter name or letter case
暂无分享,去创建一个
Abstract Subjects were shown two letters from the set BDGbdg. In one condition, subjects were required to decide whether or not the letters had the same name. In the other condition, subjects decided whether or not the two letters were presented in the same case. Reaction times were always faster when the two letters on a given trial were physically identical. However, there was no difference in the speed of a name match or a case match when the two letters were not physically identical. Since subjects could have based a case match on the presence or absence of a single feature — a protruding vertical line — it was concluded that subjects are not able to selectively attend to a single visual feature in order to identify a letter. Rather, a subject analyzes several features in parallel in order to arrive at a simultaneous decision about a letter's name or case.
[1] M. Posner,et al. Retention of visual and name codes of single letters. , 1969, Journal of experimental psychology.
[2] M I Posner,et al. Chronometric analysis of classification. , 1967, Psychological review.
[3] Michael I. Posner,et al. Subtractive method applied to separation of visual and name components of multiletter arrays , 1969 .
[4] S W Keele,et al. Decay of Visual Information from a Single Letter , 1967, Science.