Ochs A L
J Opt Soc Am. 1979 Jan;69(1):95-8. doi: 10.1364/josa.69.000095.
A numerical Fourier transform was made of the pincushion grid illusion and the spectral components orthogonal to the illusory lines were isolated. Their inverse transform creates a picture of the illusion. The spatial-frequency response of cortical, simple receptive field neurons similarly filters the grid. A complete set of these neurons thus approximates a two-dimensional Fourier analyzer. One cannot conclude, however, that the brain actually uses frequency-domain information to interpret visual images.
对枕形网格错觉进行了数值傅里叶变换，并分离出与错觉线条正交的光谱成分。它们的逆变换生成了错觉的图像。皮层简单感受野神经元的空间频率响应同样会对错觉进行过滤。因此，一整套这样的神经元近似于一个二维傅里叶分析仪。然而，人们不能就此得出大脑实际上利用频域信息来解释视觉图像的结论。
