Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Viewing another person's eye movements improves identification of pulmonary nodules in chest x-ray inspection.
AU - Litchfield, Damien
AU - Ball, Linden J.
AU - Donovan, Tim
AU - Manning, David J.
AU - Crawford, Trevor
PY - 2010/9
Y1 - 2010/9
N2 - Double reading of chest x-rays is often used to ensure that fewer abnormalities are missed, but very little is known about how the search behavior of others affects observer performance. A series of experiments investigated whether radiographers benefit from knowing where another person looked for pulmonary nodules, and whether the expertise of the model providing the search behavior was a contributing factor. Experiment 1 compared the diagnostic performance of novice and experienced radiographers examining chest x-rays and found that both groups performed better when shown the search behavior of either a novice radiographer or an expert radiologist. Experiment 2 established that benefits in performance only arose when the eye movements shown were related to the search for nodules; however, only the novices' diagnostic performance consistently improved when shown the expert's search behavior. Experiment 3 reexamined the contribution of task, image, and the expertise of the model underlying this benefit. Consistent with Experiment 1. novice radiographers were better at identifying nodules when shown either a naive's search behavior or an expert radiologist's search behavior, but they demonstrated no improvement when shown a naive model not searching for nodules. Our results suggest that although the benefits of this form of attentional guidance may be short-lived, novices can scaffold their decisions based on the search behavior of others.
AB - Double reading of chest x-rays is often used to ensure that fewer abnormalities are missed, but very little is known about how the search behavior of others affects observer performance. A series of experiments investigated whether radiographers benefit from knowing where another person looked for pulmonary nodules, and whether the expertise of the model providing the search behavior was a contributing factor. Experiment 1 compared the diagnostic performance of novice and experienced radiographers examining chest x-rays and found that both groups performed better when shown the search behavior of either a novice radiographer or an expert radiologist. Experiment 2 established that benefits in performance only arose when the eye movements shown were related to the search for nodules; however, only the novices' diagnostic performance consistently improved when shown the expert's search behavior. Experiment 3 reexamined the contribution of task, image, and the expertise of the model underlying this benefit. Consistent with Experiment 1. novice radiographers were better at identifying nodules when shown either a naive's search behavior or an expert radiologist's search behavior, but they demonstrated no improvement when shown a naive model not searching for nodules. Our results suggest that although the benefits of this form of attentional guidance may be short-lived, novices can scaffold their decisions based on the search behavior of others.
KW - radiology
KW - decision making
KW - eye movement behavior
KW - gaze following
KW - expertise
KW - PERCEIVED GAZE DIRECTION
KW - EMOTIONAL EXPRESSION
KW - DECISION-MAKING
KW - VISUAL-SEARCH
KW - PERFORMANCE
KW - PERCEPTION
KW - ATTENTION
KW - INFORMATION
KW - EXPERTISE
KW - ADVICE
UR - http://www.scopus.com/inward/record.url?scp=77957264206&partnerID=8YFLogxK
U2 - 10.1037/a0020082
DO - 10.1037/a0020082
M3 - Journal article
VL - 16
SP - 251
EP - 262
JO - Journal of Experimental Psychology: Applied
JF - Journal of Experimental Psychology: Applied
SN - 1076-898X
IS - 3
ER -