Uesaki Maiko, Biswas Arnab, Ashida Hiroshi, Maus Gerrit
Center for Information and Neural Networks (CiNet), Advanced ICT Research Institute, National Institute of Information and Communications Technology (NICT), Suita, Osaka, Japan.
Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan.
Iperception. 2024 Apr 2;15(2):20416695241242346. doi: 10.1177/20416695241242346. eCollection 2024 Mar-Apr.
The Rotating Snakes illusion is a visual illusion where a stationary image elicits a compelling sense of anomalous motion. There have been recurring albeit anecdotal claims that the perception of illusory motion is more salient when the image consists of patterns with the combination of blue and yellow; however, there is limited empirical evidence that supports those claims. In the present study, we aimed to assess whether the Rotating Snakes illusion is more salient in its blue-yellow variation, compared to red-green and greyscale variations when the luminance of corresponding elements within the patterns were equated. Using the cancellation method, we found that the velocity required to establish perceptual stationarity was indeed greater for the stimulus composed of patterns with a blue-yellow combination than the other two variants. Our findings provide, for the first time, empirical evidence that the presence of colour affects the magnitude of illusion in the Rotating Snakes illusion.
旋转蛇错觉是一种视觉错觉，即静止图像会引发一种强烈的异常运动感。尽管有反复出现的轶事性说法称，当图像由蓝色和黄色组合的图案组成时，错觉运动的感知更为显著；然而，支持这些说法的实证证据有限。在本研究中，我们旨在评估当图案中相应元素的亮度相等时，与红绿色和灰度变化相比，旋转蛇错觉在其蓝黄变体中是否更显著。使用抵消法，我们发现，对于由蓝黄组合图案组成的刺激，建立感知静止所需的速度确实比其他两种变体更大。我们的研究结果首次提供了实证证据，表明颜色的存在会影响旋转蛇错觉中错觉的程度。
