A Survey on Response and Error Ratio of Optical Illusory Figures between Art Students and Non-art Students in Taiwan

It is pretty high. Among individual figures, the exceeding large ratio of Muller-Lyer\'s \"Linking Standard Type\" is about 19.3% . This exceeds all the other types.

There is no clear difference between art students and non-art students to the above illusory figures. Generally speaking, the illusory amount of students of fine-arts department is a little higher than the illusory amount of general students, but the ratio is limited about 0.5 %. Sometimes the lower illusory amount appears in the fine-art students, so there is no absolutely stable difference about illusion between art students and non-art students.

Concerning the learning recognition of illusory figures, there are five situations: (1) The level of learning or recognition is not high. (2) The source of learning or contact mostly comes from professional courses. (3) The contents of the provided figures are not wide enough to offer a lot of illusory information.

Many people just contact geometric illusory figures. (4) Being interesting and curious are students\'impressions to the illusory figures. (5) The current teaching materials need to be revised and enlarged.

The great difference can be found between the art group and non-art group about the points mentioned above. Basically fine-art students have better response with respect to recognition, feeling, abundance of teaching materials, contact of professional books and judgment of the figures. Therefore, it is rather professional regarding the teaching and recognition effects of illusory figures.