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Before such environments can be realized, it is necessary to operationalize our understanding of the relevant aspects of visual perception, in the form of fully automated computational heuristics that can efficiently identify locations that would attract human gaze in complex dynamic environments. One promising approach to designing such heuristics draws on ideas from computational neuroscience. We compared several neurobiologically inspired heuristics with eye-movement recordings from five observers playing video games, and found that human gaze was better predicted by heuristics that detect outliers from the global distribution of visual features than by purely local heuristics. Heuristics sensitive to dynamic events performed best overall. Further, heuristic prediction power differed more between games than between different human observers. While other factors clearly also influence eye position, our findings suggest that simple neurally inspired algorithmic methods can account for a significant portion of human gaze behavior in a naturalistic, interactive setting. These algorithms may be useful in the implementation of interactive virtual environments, both to predict the cognitive state of human operators, as well as to effectively endow virtual agents in the system with humanlike visual behavior.<\/jats:p>","DOI":"10.1145\/1279920.1279923","type":"journal-article","created":{"date-parts":[[2008,5,15]],"date-time":"2008-05-15T18:28:05Z","timestamp":1210876085000},"page":"1-19","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":75,"title":["Applying computational tools to predict gaze direction in interactive visual environments"],"prefix":"10.1145","volume":"5","author":[{"given":"Robert J.","family":"Peters","sequence":"first","affiliation":[{"name":"University of Southern California, Los Angeles, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent","family":"Itti","sequence":"additional","affiliation":[{"name":"University of Southern California, Los Angeles, California"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2008,5,19]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-9280.2005.01619.x"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1162\/jocn.1995.7.1.66"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1983.1095851"},{"key":"e_1_2_1_4_1","volume-title":"Proc. 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