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 ›› 1989, Vol. 21 ›› Issue (2): 75-80.

• • 上一篇    下一篇

运动视觉的奇次倍频现象

吴新年;姚国正;高干;汪云九   

  1. 中国科学院生物物理所,中国科学院生物物理所,中国科学院生物物理所,中国科学院生物物理所 北京 ,北京 ,北京 南京大学生物系研究生 ,北京
  • 出版日期:1989-06-25 发布日期:1989-06-25
  • 通讯作者: 吴新年

AN ODD HARMONIC PHENOMENON OF VISUAL MOTION PERCEPTION

Wu Xin-nian;Yao Guo-zheng;Wang Yun-jiu;Gao Qian Institute of Biophysics,Academia Sinica,Beijing Department of Biology,Nanjing University   

  • Published:1989-06-25 Online:1989-06-25

摘要: 当刺激图形为高速运动的方波光栅时,可观测到一种新的奇次谐波现象。当被试光栅为某些临界时间频率时,奇次谐波光栅静止不动,稍微偏离这些临界值,谐波光栅开始运动,其表现运动方向,或者与被试光栅相同,或者相反,这取决于被试光栅的时间频率高于或低于临界频率。本文使用视觉时空采样假设和付氏分析,初步解释了这一现象。

关键词: NULL

Abstract: A new phenomenon of odd harmonic squarewave gratings was obser- ved when the stimulus was a rapidly travelling squarewave grating. Some stationary harmonic gratings could be observed at some critical temporal frequencies of the test grating, however at frequencies slightly different from the critical ones, the harmonic gratings appeared to be moving. Th- eir apparent motion directions were the same as that of the test grating or opposite to it, depending on whether the temporal frequencies of the test grating were greater or lower than the critical frequencies. Some sug- gestions concerning the spatio-temporal sampling theory and Fourier ana- lysis were proposed in this paper.

Key words: NULL