ABSTRACT
If visual search is probabilistic then the best we can do is to recommend certain things that should reduce the probability of missing a signal. We should also consider dynamic as well as static images. For example, when a coronary arteriogram is taken, the dye goes through the heart with a visual "woosh" and whether the radiologist watching on a TV monitor sees something may decide whether or not they cut the chest open, stop the heart, and do things to the coronary arteries. This operation is now competing with appendectomies for popularity, so it is a question of much greater than academic interest, especially for those over 40.
