The motion-induced shift in the perceived location of a grating also shifts its aftereffect.
The motion-induced shift in the perceived location of a grating also shifts its aftereffect.
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DOI：
10.1167/12.8.7
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发表时间：
2012-01-01
影响因子：
1.8
通讯作者：
Whitney D
中科院分区：
文献类型：
--
作者：
Kosovicheva AA;Maus GW;Anstis S;Cavanagh P;Tse PU;Whitney D
运动可以偏置的感知位置的一个固定的刺激，但这是否发生在一个高水平的代表性或在早期，视网膜视觉处理阶段仍然是一个悬而未决的问题。由于编码的方向出现在视觉处理的早期，我们测试了运动是否会影响空间位置的方向适应。具体而言，我们研究了倾斜后效（TAE）是否取决于感知或视网膜位置的适应刺激，或两者兼而有之。我们使用闪光拖曳效应（FDE）来产生适配器的感知位置远离其视网膜位置的偏移。受试者观看一个顺时针和逆时针振荡的图案盘，同时适应一个包含倾斜线性光栅的小圆盘，该光栅在旋转反转的时刻短暂闪烁。FDE使光栅的感知位置在紧接闪光之后的盘的运动方向上偏置，从而允许视网膜和适配器的感知位置之间的分离。简短的测试光栅，随后提出了在三个位置之一的视网膜位置的适配器，其感知的位置，或等距控制位置（antispercepted位置）。在每个位置的TAE的测量结果表明，TAE是最强的视网膜位置，并在感知的位置相比，antispercepted的位置更大。这表明与FDE一致的TAE的空间调谐中的偏斜。总之，我们的研究结果表明，运动可以偏向低水平适应的位置。
Motion can bias the perceived location of a stationary stimulus, but whether this occurs at a high level of representation or at early, retinotopic stages of visual processing remains an open question. As coding of orientation emerges early in visual processing, we tested whether motion could influence the spatial location at which orientation adaptation is seen. Specifically, we examined whether the tilt aftereffect (TAE) depends on the perceived or the retinal location of the adapting stimulus, or both. We used the flash-drag effect (FDE) to produce a shift in the perceived position of the adaptor away from its retinal location. Subjects viewed a patterned disk that oscillated clockwise and counterclockwise while adapting to a small disk containing a tilted linear grating that was flashed briefly at the moment of the rotation reversals. The FDE biased the perceived location of the grating in the direction of the disk's motion immediately following the flash, allowing dissociation between the retinal and perceived location of the adaptor. Brief test gratings were subsequently presented at one of three locations—the retinal location of the adaptor, its perceived location, or an equidistant control location (antiperceived location). Measurements of the TAE at each location demonstrated that the TAE was strongest at the retinal location, and was larger at the perceived compared to the antiperceived location. This indicates a skew in the spatial tuning of the TAE consistent with the FDE. Together, our findings suggest that motion can bias the location of low-level adaptation.
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影响因子：
64.8
作者：
Ross, J;Morrone, MC;Burr, DC
通讯作者：
Burr, DC
影响因子：
1.8
作者：
Shim, WM;Cavanagh, P
通讯作者：
Cavanagh, P
影响因子：
1.7
作者：
RAMACHANDRAN, VS;ANSTIS, SM
通讯作者：
ANSTIS, SM
影响因子：
56.9
作者：
MAFFEI, L;FIORENTINI, A;BISTI, S
通讯作者：
BISTI, S
DOI：
10.3758/bf03210359
发表时间：
1972-01-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
HUGHES, PC;BRECHER, GA;FISHKIN, SM
通讯作者：
FISHKIN, SM