Basic Study on the Recognition of Height (Vertical Length) and Width (Horizontal Length) of Squares

摘要

It is said that human vision has the tendency that the vertical direction is recognized as being longer than the horizontal direction. Such an erroneous recognition when reading the drawing may lead to trouble. In this study, the cognition test are performed on 100 subjects to find out if it was possible to correctly find squares from 49 different sizes of rectangles, each of which had 7 vertical and 7 horizontal lengths. In this paper, the results of the test using a sheet in which rectangles are arranged in 7 rows and 7 columns on A4 paper, and the width is increased from left to right and the height is increased from top to bottom, are described. Squares can be recognized correctly while there were some cases in which vertical rectangles were mistaken for squares.