ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 1965, Vol. 9 ›› Issue (01): 65-77.

• • 上一篇    下一篇

光坪对同时性闪光信号辨认的影响

赫葆源;马谋超   

  1. 中国科学院心理研究所 ,中国科学院心理研究所
  • 出版日期:1965-03-25 发布日期:1965-03-25
  • 通讯作者: 赫葆源

BRIGHT VS. DIM,INSTEAD OF DARK PHASE,OF SIMULTANEOUS FLASH SIGNALS AND THEIR DISCRIMINATION

HO PAO-YUAN MA MOU-CHAO   

  • Online:1965-03-25 Published:1965-03-25

摘要: <正> 問題 如果在构成閃光的相互交替的亮与黑两个时相中,黑时相不是完全黑,而是亮度不同程度的变暗,人們照样能看出閃光。暗时相的光強可以低到零,这就是一般閃光;但其光強也可以象亮时相一样高,那就变成了固定灯光。我們把一切強度的暗时相統称为“光坪”或“坪”,而把亮吋相叫作“光峯”或“峯”。 关于光坪对閃光信号辨认的影响的問題,是有关业务部門提出来的。根据我們的現場調查,使用者对某些带光坪的閃光信号的試用反应良好。我們前一研究表明,在实驗給定条件下,不宜使用两个同时性閃光,作为类似該实驗所用編碼的信号;同时提出“不

关键词: NULL

Abstract: In order to facilitate the discrimination of two nearby flash light signals and to eliminate the resulting apparent movement, the effects of different intensity levels of dim phase, instead of dark phase, intervening the repetitive flash signals, on discrimination were tested under laboratory conditions. Results revealed that (1) the disjunctive reaction time of the flash signals increased with the intensity level of the dim phase; (2) there existed an optimum intensity level of the dim phase which yielded least discrimination errors; and (3) the occurence rate of apparent movement, caused by the two flash signals, decreased with the increasing intensity level of the dim phase.Field experiments were also conducted to compare the effects of dim phase and those of dark phase. Results indicated that (1) at day time, flash signals with dim phase gave longer reaction time and more errors than that with dark phase; (2) in the night, flashes with dim phase showed less unfavourable effects on discrimination, with a tendency of shortening the reaction time and diminishing errors, though the differences were not significant; (3) the dim phase, as compared with the dark one, had definite effects on the elimination of apparent movement of two simultaneous flash signals. This suggested the possibility of utilizing a dim phase in simultaneous flash signals under certain circumstances.

Key words: NULL