Appearance of the Frequency-Doubling Stimulus at Threshold

被引:2
|
作者
Hogg, Ruth Esther [1 ]
Anderson, Andrew John [1 ]
机构
[1] Univ Melbourne, Dept Optometry & Vis Sci, Melbourne, Vic 3010, Australia
关键词
TECHNOLOGY PERIMETRY; PERIPHERAL-VISION; ILLUSION; GLAUCOMA; ADAPTATION; RESOLUTION; RESPONSES;
D O I
10.1167/iovs.08-2866
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
PURPOSE. It has been argued that the threshold for detecting frequency-doubling (FD) technology perimeter stimuli differs from the threshold for perceiving spatial structure (pattern) in the same targets. Thresholds for perceiving spatial structure have typically been assessed using orientation-identification experiments. The authors investigated the influence of orientation, edge profile, and psychophysical method on the origin of the reported differences in detection and orientation-identification thresholds for FD gratings. METHODS. Detection and orientation-identification thresholds were determined in 12 observers with the use of FD stimuli (0.25 cyc/deg, 25 Hz) presented centrally and at 15 eccentricity. Edge profile (square- and Gaussian-windowed) and orientation (horizontal, vertical, and oblique) were independently modified. Detection thresholds were also measured for spatially uniform flickering targets (25 Hz). Orientation-identification thresholds using a two-alternative forced choice (2-AFC) and a two-interval forced choice (2-IFC) method were also compared in five experienced observers. RESULTS. Orientation-identification and detection thresholds did not significantly differ under any condition tested. Orientation-identification thresholds obtained with 2-AFC were not significantly different from those obtained with 2-IFC. Thresholds for spatially uniform flicker were significantly lower than for FD stimuli. CONCLUSIONS. The authors found that orientation-identification and detection thresholds for FD gratings did not differ and argue that recent findings to the contrary arise from the inappropriate use of spatially uniform flicker targets as alternatives in 2-IFC experiments. (Invest Ophthalmol Vis Sci. 2009; 50: 1477-1482) DOI:10.1167/iovs.08-2866
引用
收藏
页码:1477 / 1482
页数:6
相关论文
共 50 条
  • [21] THERMAL EFFECTS IN INTRACAVITY FREQUENCY-DOUBLING CRYSTALS
    CLOBES, AR
    STEIN, A
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1973, 63 (04) : 474 - 474
  • [22] Implementation method of a frequency-doubling optoelectronic oscillator
    Liu, Jingxian, 1600, Chinese Optical Society (34):
  • [23] Frequency-doubling technology perimetry and optical defocus
    Anderson, AJ
    Johnson, CA
    INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 2003, 44 (09) : 4147 - 4152
  • [24] A Novel Frequency-Doubling Brillouin Optoelectronic Oscillator
    Yang, Bo
    Jin, Xiaofeng
    Zou, Shihuan
    Tangdiongga, Eduward
    Koonen, Ton
    Chi, Hao
    Zheng, Shilie
    Zhang, Xianmin
    2012 IEEE INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP), 2012, : 55 - 58
  • [25] SEMIEMPIRICAL CALCULATIONS OF MOLECULAR FREQUENCY-DOUBLING RESPONSE
    KANIS, DR
    MARKS, TJ
    DIBELLA, S
    LI, D
    RATNER, MA
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 206 : 73 - PHYS
  • [26] IMAGING THE NONLINEAR GRATING IN FREQUENCY-DOUBLING FIBERS
    MARGULIS, W
    LAURELL, F
    LESCHE, B
    NATURE, 1995, 378 (6558) : 699 - 701
  • [27] Accuracy of glaucoma detection with frequency-doubling perimetry
    Trible, JR
    Schultz, RO
    Robinson, JC
    Rothe, TL
    AMERICAN JOURNAL OF OPHTHALMOLOGY, 2000, 129 (06) : 740 - 745
  • [28] Recent findings in frequency-doubling metallosupramolecular complexes
    Heirtzler, Fenton
    Gonella, Grazia
    Burke, Luke
    Jones, Stephanie
    Zubieta, Jon
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2013, 245
  • [29] NEW TI-SAPPHIRE FREQUENCY-DOUBLING
    MOSS, T
    PHOTONICS SPECTRA, 1993, 27 (08) : 32 - 32
  • [30] A phase mixing model for the frequency-doubling illusion
    Wielaard, James
    Smith, R. Theodore
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2013, 30 (10) : 2048 - 2065