image/svg+xml
Openclipart
Optical Illusion (1)
2008-02-23T02:00:37
ШелÑга, Ð’.Ð’., Глоточкина, Ð.Д., Платонова, К.К. (1972). Ð’Ð¾ÐµÐ½Ð½Ð°Ñ Ð¿ÑихологиÑ. МоÑква.
https://openclipart.org/detail/14733/optical-illusion-(1)-by-cibo00-14733
cibo00
externalsource
human perception
optical illusion
spiral