Phantom pencil illusion Y Sugano |
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Faculty of Contemporary Psychology, St Pauls University, Japan
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| Looking into a black pipe, 45cm in length and 2cm in diameter, I found a new geometrical optical illusion. Under the condition of perceiving this phenomenon, the black pipe and the bright background are needed. When the observer sees through the flat plane using the pipe with one eye, he or she can perceive an ambiguous figure like a pencil without a lead. And then the figure juts up to the observer (inside the pipe). This is “phantom pencil illusion”. The "black" pipe is suitable condition for this illusion. This phenomenon is newly found in the research area of visual perception. |
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