Jeremy M. Wolfe1
1Brigham & Women's Hospital,
Humans
are very good at visual search tasks, looking for targets in scenes filled
with distractors. Trained humans are very good at applied search tasks like
medical and security screening. However, people make errors and these can be
associated with high costs like missed disease. This talk will illustrate
three sources of error that are rooted in human cognitive function: Crowding
effects: where neighboring items hide clearly visible targets. Change
blindness: where the limits on visual processing make observers insensitive
to substantial changes in an image. And prevalence effects: where rare
targets are missed simply because they are rare.
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