Going on with false beliefs: What if satisfaction of search was really suppression of recognition?

Claudia Mello-Thoms; Phuong Dung Trieu; Patrick C. Brennan

doi:10.1117/12.2044370

11 March 2014 Going on with false beliefs: What if satisfaction of search was really suppression of recognition?

Claudia Mello-Thoms, Phuong Dung Trieu, Patrick C. Brennan

Proceedings Volume 9037, Medical Imaging 2014: Image Perception, Observer Performance, and Technology Assessment; 903708 (2014) https://doi.org/10.1117/12.2044370
Event: SPIE Medical Imaging, 2014, San Diego, California, United States

Abstract

Satisfaction of search (SOS) is a well known phenomenon in radiology, in which the detection of one abnormality facilitates the neglect of other abnormalities. Over the years SOS has been thoroughly studied primarily in chest and in trauma, and it has been found to be an elusive effect, appearing in some settings but not in others. Unfortunately, very little is known about SOS in mammography. In this study we will explore SOS in breast cancer detection by considering a case set of digital mammograms as interpreted by breast radiologists. However, the primary goal of the study will be to challenge the core of the paradigm; for decades, many have associated SOS with incomplete search, but as Kundel has put eloquently when addressing the SPIE Medical Imaging in 2004 [1], “observers do not stop viewing when one abnormality has been found on an image with multiple abnormalities”. What else could cause SOS then? According to our previous work, the first “perceived” abnormality reported by a radiologist has an influential role in the report of any other “perceived” abnormalities on the case, which supports the idea that perhaps SOS is caused a perceptual suppression of the recognition of different abnormalities. In other words, once the radiologist has made a first report (regardless of whether that first report is a TP or FP), detection and hence reporting of other abnormalities present in the case are greatly dependent on whether these associated abnormalities “fit the profile” of what has been already found.

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Claudia Mello-Thoms, Phuong Dung Trieu, and Patrick C. Brennan "Going on with false beliefs: What if satisfaction of search was really suppression of recognition?", Proc. SPIE 9037, Medical Imaging 2014: Image Perception, Observer Performance, and Technology Assessment, 903708 (11 March 2014); https://doi.org/10.1117/12.2044370

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