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“Target-absent” decisions in cancer nodule detection are more efficient than “target-present” decisions!

  • Trevor J. Crawford (a1), Damien Litchfield (a2) and Tim Donovan (a3)

Abstract

Many parts of the medical image are never fixated when a radiologist searches for cancer nodules. Experts are able to use peripheral vision very efficiently. The size of the functional visual field appears to increase according to the level of expertise. However, searching a medical image diverges, in a puzzling way, from the typical search for a target feature in the laboratory.

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