Journal of experimental psychology. Human perception and performance
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J Exp Psychol Hum Percept Perform · Aug 2007
Initial scene representations facilitate eye movement guidance in visual search.
What role does the initial glimpse of a scene play in subsequent eye movement guidance? In 4 experiments, a brief scene preview was followed by object search through the scene via a small moving window that was tied to fixation position. Experiment 1 demonstrated that the scene preview resulted in more efficient eye movements compared with a control preview. ⋯ Experiment 4 demonstrated that the scene preview benefit was unaffected by changing the size of the scene from preview to search. Taken together, the results suggest that an abstract (size invariant) visual representation is generated in an initial scene glimpse and that this representation can be retained in memory and used to guide subsequent eye movements.
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J Exp Psychol Hum Percept Perform · Aug 2007
Spatial constraints on learning in visual search: modeling contextual cuing.
Predictive visual context facilitates visual search, a benefit termed contextual cuing (M. M. Chun & Y. ⋯ The modeling and behavioral results indicate that learning may be restricted to the local context even when the entire configuration is predictive of target location. Local learning constrains how much guidance is produced by contextual cuing. The modeling and new data also demonstrate that local learning requires that the local context maintain its location in the overall global context.