The influence of visual angle on the performance of static images scanning

  • Authors:

  • Xiang Qiu;Yong Niu;Xiaolan Fu

  • Affiliations:

  • State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China and Graduate School of the Chinese Academy of Sciences, Beijing, China;Beijing Jiao Tong University, Beijing, China;State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China

  • Venue:
  • EPCE'07 Proceedings of the 7th international conference on Engineering psychology and cognitive ergonomics
  • Year:
  • 2007

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Abstract

The present study addressed to explore the influence of visual angle on the performance of static images scanning with a 2 (scanning distance) × 2 (scanning type) × 3 (visual angle) mixed design. The results demonstrated significant effects of three factors on participants' performance. Stimuli at 5.5° and 8.4° rather than 2.7° could facilitate the performance of static image scanning. However, the effect of visual angle on mental image scanning was smaller than on retinal image scanning. These findings were interpreted in terms of the theory of working memory and the theory of mental image. The implication of these findings in human-computer interface was discussed at last.