Is visual search really like foraging?
The visual-search paradigm provides a controlled and easy to implement experimental situation in which to study the search process. However, little work has been carried out in humans to investigate the extent to which traditional visual-search tasks are similar to more general search or foraging. Here we report results from a task in which search involves walking around a room and leaning down to inspect individual locations. Consistent with more traditional search tasks, search time increases linearly with display size, and the target-present to target-absent search slope is 1:2. However, although rechecking of locations did occur, compared to more traditional search it was relatively rare, suggesting an increased role for memory.
Gilchrist
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Department of Experimental Psychology, University of Bristol, UK. I.D.Gilchrist@bris.ac.uk
North
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Hood
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D000328:Adult; D005133:Eye Movements / Q000502:physiology*; D006801:Humans; D016014:Linear Models; D008568:Memory / Q000502:physiology; D011930:Reaction Time; D018401:Sample Size