ISSN : 1796-203X
Volume : 4    Issue : 10    Date : October 2009

Eyes Draw Auxiliary Lines in Interpreting Images
Yukio Ohsawa and Yusuke Maeda
Page(s): 1012-1021
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This study aims at finding a typical pattern in the eye movement, when human obtains an
interpretation of a presented image. We conducted experiments where subjects looked at abstract
artworks and commercial posters. We compared the eye track lines with subjects’ statements
about the interpretation of the image. The results show the tendency that eyes draw lines in the
velocity between saccade and pursuit eye-movement as we call slow saccade line (SSL), following
objects in the image corresponding to the meaningful units (sentences) of subjects’ statement
about image interpretation. Furthermore, when they reached an insight, i.e., obtained a new
interpretation after feeling difficulty in understanding the image, the eye track changed into SSLs
after exploring in the velocity of fast saccade. We found this shift of velocity enables to acquire long-
term memory of the obtained interpretation.

Auxiliary lines, slow saccade line, image interpretation, insight