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Learning about the environment across separate views
Dr. David Melcher
Monday, March 27, 2006, 02:00pm - 03:00pm
Oxford Brookes University, Dept. of Psychology
The nature of saccadic eye movements raises the question of how information from separate fixations is integrated into a single percept. I will discuss two mechanisms that may be involved in generating our stable and continuous perception of the world. First, information about attended objects may be integrated across separate glances. I will present data showing the trans-saccadic temporal integration of motion and form. Second, information about multiple objects in a natural scene may be built up across separate glances into a coherent representation of the environment. The combination of saccadic re-mapping, occurring on a time scale of milliseconds, and visual scene memory, operating over a span of several minutes, may underlie the subjective impression of a stable visual world.