Pupil diameter differentiates expertise in dental radiography visual search.

Expert behavior is characterized by rapid information processing abilities, dependent on more structured schemata in long-term memory designated for their domain-specific tasks. From this understanding, expertise can effectively reduce cognitive load on a domain-specific task. However, certain tasks...

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Main Authors: Nora Castner, Tobias Appel, Thérése Eder, Juliane Richter, Katharina Scheiter, Constanze Keutel, Fabian Hüttig, Andrew Duchowski, Enkelejda Kasneci
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0223941
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author Nora Castner
Tobias Appel
Thérése Eder
Juliane Richter
Katharina Scheiter
Constanze Keutel
Fabian Hüttig
Andrew Duchowski
Enkelejda Kasneci
author_facet Nora Castner
Tobias Appel
Thérése Eder
Juliane Richter
Katharina Scheiter
Constanze Keutel
Fabian Hüttig
Andrew Duchowski
Enkelejda Kasneci
author_sort Nora Castner
collection DOAJ
description Expert behavior is characterized by rapid information processing abilities, dependent on more structured schemata in long-term memory designated for their domain-specific tasks. From this understanding, expertise can effectively reduce cognitive load on a domain-specific task. However, certain tasks could still evoke different gradations of load even for an expert, e.g., when having to detect subtle anomalies in dental radiographs. Our aim was to measure pupil diameter response to anomalies of varying levels of difficulty in expert and student dentists' visual examination of panoramic radiographs. We found that students' pupil diameter dilated significantly from baseline compared to experts, but anomaly difficulty had no effect on pupillary response. In contrast, experts' pupil diameter responded to varying levels of anomaly difficulty, where more difficult anomalies evoked greater pupil dilation from baseline. Experts thus showed proportional pupillary response indicative of increasing cognitive load with increasingly difficult anomalies, whereas students showed pupillary response indicative of higher cognitive load for all anomalies when compared to experts.
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spelling doaj.art-f24c37ffa3d94d94aad97ffb2ec4299f2022-12-21T19:52:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01155e022394110.1371/journal.pone.0223941Pupil diameter differentiates expertise in dental radiography visual search.Nora CastnerTobias AppelThérése EderJuliane RichterKatharina ScheiterConstanze KeutelFabian HüttigAndrew DuchowskiEnkelejda KasneciExpert behavior is characterized by rapid information processing abilities, dependent on more structured schemata in long-term memory designated for their domain-specific tasks. From this understanding, expertise can effectively reduce cognitive load on a domain-specific task. However, certain tasks could still evoke different gradations of load even for an expert, e.g., when having to detect subtle anomalies in dental radiographs. Our aim was to measure pupil diameter response to anomalies of varying levels of difficulty in expert and student dentists' visual examination of panoramic radiographs. We found that students' pupil diameter dilated significantly from baseline compared to experts, but anomaly difficulty had no effect on pupillary response. In contrast, experts' pupil diameter responded to varying levels of anomaly difficulty, where more difficult anomalies evoked greater pupil dilation from baseline. Experts thus showed proportional pupillary response indicative of increasing cognitive load with increasingly difficult anomalies, whereas students showed pupillary response indicative of higher cognitive load for all anomalies when compared to experts.https://doi.org/10.1371/journal.pone.0223941
spellingShingle Nora Castner
Tobias Appel
Thérése Eder
Juliane Richter
Katharina Scheiter
Constanze Keutel
Fabian Hüttig
Andrew Duchowski
Enkelejda Kasneci
Pupil diameter differentiates expertise in dental radiography visual search.
PLoS ONE
title Pupil diameter differentiates expertise in dental radiography visual search.
title_full Pupil diameter differentiates expertise in dental radiography visual search.
title_fullStr Pupil diameter differentiates expertise in dental radiography visual search.
title_full_unstemmed Pupil diameter differentiates expertise in dental radiography visual search.
title_short Pupil diameter differentiates expertise in dental radiography visual search.
title_sort pupil diameter differentiates expertise in dental radiography visual search
url https://doi.org/10.1371/journal.pone.0223941
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