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Fig. 4C. —56-year-old woman with microcalcifications in right breast. Eye-fixation record of experienced mammographer scanning A. Total search time was 34 sec. Lesion area is again shown by large circle with thin lines. Mammographer focused attention on true lesion, cluster of microcalcifications. Attention was fixated on craniocaudal view almost immediately on presentation. Mammographer crossed over to mediolateral oblique view and fixated lesion within 16 sec. During entire search, mammographer fixated lesion in both images for dwell times greater than 1000 msec, indicated by thick-line fixation-cluster circles overlapping thin-line lesion circles. Mammographer also fixated same subareolar region in lateral breast on craniocaudal view that trainee fixated for 1000 msec, but mammographer did not report abnormal finding for this location. True lesion, however, was reported as microcalcification cluster at end of search.