An Examination of An Anorthoscopic Perception Focused on
A Delay and A Generation Rate of Smooth Pursuit Eye Movement

Abstract

In the observation through the slit, we can observe only the part of the object in some moments. However, we can perceive the whole image, when the object moves behind the slit. Then, it is perceived to be shorter than the length of actual object. This causes “Anorthoscopic perception.” This phenomenon indicates the mechanism for perceiving the whole image which temporarily stores the fragments of the image. The mechanism is not yet investigated in detail. In this paper, we propose the technique in which we quantitatively measure the shortening effect using multiple slits. We carried out the psychology experiment using this technique. Then, we obtained the result which indicated the possibility with the relation between the effect and eye movements. So, we measured the eye movements in observing through slits for verification of this possibility by the EOG-method. We are focuced on the delay and generation rate of smooth pursuit eye movement.As a considering this factor, we predicted the shortening rate. The predicted curve was matched experimental result.Finally, it was indicated that the delay and generation rate of smooth pursuit eye movement played important role in the shortening effect of an anorthoscopic perception.