Departmental Papers (CIS)

Date of this Version

September 2005

Document Type

Conference Paper


Postprint version. Published in Lecture Notes in Computer Science, Volume 3661, Intelligent Virtual Agents, 2005, pages 178-190.
Publisher URL:


This paper presents a computational model of visual attention incorporating a cognitive imperfection known as inattentional blindness. We begin by presenting four factors that determine successful attention allocation: conspicuity, mental workload, expectation and capacity. We then propose a framework to study the effects of those factors on an unexpected object and conduct an experiment to measure the corresponding subjective awareness level. Finally, we discuss the application of a visual attention model for conversational agents.



Date Posted: 14 April 2006