人对CRT显示器屏显字符的认知和瞬时记忆的研究

A Study on the Cognizance and Immediate Memory of Characters Presented on CRT Display

本研究的目的是考察人对显示在CRT 显示器屏幕上的、显示位置固定和随机的字符的认知和瞬时记忆的能力。实验结果:(1)得到了单个显示的阿拉伯数字和汉字的认知速率数据及字符认知与显示时间相关的数学模型;(2)得到了数字、彼此无关联的汉字、以及构成词句的汉字在显示时间为0.5、1、2、和5s 时的认知量和瞬时记忆量数据;(3)得到了每种字符在不同显示时间的视觉信息传递量数据;(4)字符的认知量和瞬时记忆量随显示时间的增加而提高,而单位时间的认知量和瞬时记忆量却随显示时间的增加而下降。

The purpose of this study is to investigate human capacity to cognizeand to immediatly memorize characters presented on the screen of CRT display anywhereor on a fixed position.The following results were obtained:(1)data of cognitve rate ofsingle Arabic numeral or Chinese character,and the mathematical model of the cog-nizance of character as a function of duration of presentation;(2)cognizable numberand number of immediate memory of Arabic numerals and Chinese characters unrelatedto each other or constructed in a term or in a sentence when the duration of presentation is500、1000、2000 and 5000ms;(3)the number of information transfered visually in dif-ferent durations of presentation;(4)with increase of duration of presentation,cognizablenumber and number of immediate memory of characters are increasing,whereas cogniz-able number and number of immediate memory of characters in unit time are decreasing.