The wallpaper illusion explained.

The wallpaper illusion explained.
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壁纸错觉的解释。

DOI:
10.1167/7.14.10
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发表时间:
2007
期刊:
影响因子:
1.8
通讯作者:
Petrov,Yury
Petrov,Yury
中科院分区:
医学4区
文献类型:
--
作者:
McKee,SuzanneP;Verghese,Preeti;Ma-Wyatt,Anna;Petrov,Yury

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In the wallpaper illusion, a repetitive pattern appears to shift from one depth plane to the plane nearest fixation. We measured the timing of this shift for a 6 wide, 3-cpd sinusoidal grating presented in a rectangular envelope; the edges (envelope) of the grating were presented at 20 arcmin of disparity (one period) behind the fixation plane. We asked observers to signal when the segment appeared to move from the edge plane forward to the fixation plane. Initially, the shift from the edge plane took 4–6 s, but after many trials, the shift became faster. Additional experiments demonstrated that the envelope was adapting, thereby permitting the alternative match. Our measurements for a range of spatial frequencies and disparities showed that these shifts to the fixation plane occurred only if the envelope disparity was more than one-half period of the carrier; that is, phase disparity> 180. We also found that stereoacuity for the initial envelope-based match was poor, as might be expected for a target presented far off the fixation plane. However, once the perceived shift in depth occurred, stereoacuity improved fivefold without any change in the physical stimulus. We speculate that access to the most sensitive V1 neurons depends on the extrastriate processes that determine perceived depth—in this case, second-order envelope mechanisms.
二阶(非线性)立体视觉的尺度选择
DOI: 10.1016/s0042-6989(97)00061-8
发表时间: 1997
期刊: Vision Research
影响因子: 1.8
作者:
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DOI: 10.1523/jneurosci.4379-05.2006
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期刊: The Journal of Neuroscience
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作者:
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发表时间: 1997
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影响因子: 1.8
作者:
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立体声灵敏度取决于立体声匹配。
DOI: 10.1167/5.10.3
发表时间: 2005
期刊: Journal of vision
影响因子: 1.8
作者:
McKee,SuzanneP;Verghese,Preeti;Farell,Bart
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对比包络的立体视觉
DOI: --
发表时间: 1999
期刊: Vision Research
影响因子: 1.8
作者:
K. Langley;David J. Fleet;P. Hibbard
通讯作者: P. Hibbard