Spotting lesions in thorax X-rays at a glance: holistic processing in radiology

Abstract Radiologists often need only a glance to grasp the essence of complex medical images. Here, we use paradigms and manipulations from perceptual learning and expertise fields to elicit mechanisms and limits of holistic processing in radiological expertise. In the first experiment, radiologist...

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Main Authors: Merim Bilalić, Thomas Grottenthaler, Thomas Nägele, Tobias Lindig
Format: Article
Language:English
Published: SpringerOpen 2022-11-01
Series:Cognitive Research
Subjects:
Online Access:https://doi.org/10.1186/s41235-022-00449-8
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author Merim Bilalić
Thomas Grottenthaler
Thomas Nägele
Tobias Lindig
author_facet Merim Bilalić
Thomas Grottenthaler
Thomas Nägele
Tobias Lindig
author_sort Merim Bilalić
collection DOAJ
description Abstract Radiologists often need only a glance to grasp the essence of complex medical images. Here, we use paradigms and manipulations from perceptual learning and expertise fields to elicit mechanisms and limits of holistic processing in radiological expertise. In the first experiment, radiologists were significantly better at categorizing thorax X-rays when they were presented for 200 ms in an upright orientation than when they were presented upside-down. Medical students, in contrast, were guessing in both situations. When the presentation time was increased to 500 ms, allowing for a couple more glances, the radiologists improved their performance on the upright stimuli, but remained at the same level on the inverted presentation. The second experiment circumvented the holistic processing by immediately cueing a tissue within the X-rays, which may or may not contain a nodule. Radiologists were again better than medical students at recognizing whether the cued tissue was a nodule, but this time neither the inverted presentation nor additional time affected their performance. Our study demonstrates that holistic processing is most likely a continuous recurring process which is just as susceptible to the inversion effect as in other expertise domains. More importantly, our study also indicates that holistic-like processing readily occurs in complex stimuli (e.g., whole thorax X-rays) but is more difficult to find in uniform single parts of such stimuli (e.g., nodules).
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spelling doaj.art-9530f5f021284b3dafb012eaf8a4fe8a2022-12-22T03:46:50ZengSpringerOpenCognitive Research2365-74642022-11-017111310.1186/s41235-022-00449-8Spotting lesions in thorax X-rays at a glance: holistic processing in radiologyMerim Bilalić0Thomas Grottenthaler1Thomas Nägele2Tobias Lindig3Department of Psychology, University of Northumbria at NewcastleDepartment of Neuroradiology, University of TübingenDepartment of Neuroradiology, University of TübingenDepartment of Neuroradiology, University of TübingenAbstract Radiologists often need only a glance to grasp the essence of complex medical images. Here, we use paradigms and manipulations from perceptual learning and expertise fields to elicit mechanisms and limits of holistic processing in radiological expertise. In the first experiment, radiologists were significantly better at categorizing thorax X-rays when they were presented for 200 ms in an upright orientation than when they were presented upside-down. Medical students, in contrast, were guessing in both situations. When the presentation time was increased to 500 ms, allowing for a couple more glances, the radiologists improved their performance on the upright stimuli, but remained at the same level on the inverted presentation. The second experiment circumvented the holistic processing by immediately cueing a tissue within the X-rays, which may or may not contain a nodule. Radiologists were again better than medical students at recognizing whether the cued tissue was a nodule, but this time neither the inverted presentation nor additional time affected their performance. Our study demonstrates that holistic processing is most likely a continuous recurring process which is just as susceptible to the inversion effect as in other expertise domains. More importantly, our study also indicates that holistic-like processing readily occurs in complex stimuli (e.g., whole thorax X-rays) but is more difficult to find in uniform single parts of such stimuli (e.g., nodules).https://doi.org/10.1186/s41235-022-00449-8ExpertiseRadiologyHolistic processingInversion effectGlobal impression
spellingShingle Merim Bilalić
Thomas Grottenthaler
Thomas Nägele
Tobias Lindig
Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
Cognitive Research
Expertise
Radiology
Holistic processing
Inversion effect
Global impression
title Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
title_full Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
title_fullStr Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
title_full_unstemmed Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
title_short Spotting lesions in thorax X-rays at a glance: holistic processing in radiology
title_sort spotting lesions in thorax x rays at a glance holistic processing in radiology
topic Expertise
Radiology
Holistic processing
Inversion effect
Global impression
url https://doi.org/10.1186/s41235-022-00449-8
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