A Relationship between Pupillary Changes and Subjective Indices to the Content of Television Programs

Abstract

It is possible to evaluate viewer's interest in visual information using pupillary changes caused by mental activity. This paper examines the possibility of estimating viewer's interest and enjoyment of T.V. programs by measuring dynamic pupillary changes, blinking, and subjective interest responses. The primary factors for pupillary changes are derived, for evaluating images of T.V. programs from questionnaires which are based on the SD method. The results showed, in dynamic evaluation, that there is a relationship between pupillary changes and subjective interest response. In evaluating images from T.V. programs, there is a significant difference in pupil size between the higher and the lower group for the factor score of 'Potency', and a difference in blinking between the higher and the lower group for the factor score of 'Activity'. Also there is a significant correlation between subjective interest response and all three factors.