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Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia

John Towler Orcid Logo, Dan Morgan, Jodie Davies-Thompson Orcid Logo

Brain Sciences, Volume: 14, Issue: 8, Start page: 815

Swansea University Authors: John Towler Orcid Logo, Dan Morgan, Jodie Davies-Thompson Orcid Logo

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DOI (Published version): 10.3390/brainsci14080815

Abstract

Individuals with developmental prosopagnosia (DP) experience severe face memory deficits that are often accompanied by impairments in face perception. Images of human facial features are better discriminated between when they are presented in the locations on the visual field that they typically app...

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Published in: Brain Sciences
ISSN: 2076-3425
Published: MDPI AG 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67547
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spelling v2 67547 2024-09-03 Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia 5bc86619011fcaa9caeb27d7f89b8e9e 0000-0002-5132-1969 John Towler John Towler true false c24b8e24914a5e54f200db48b661c00c Dan Morgan Dan Morgan true false 0f228cbf8dfc2a66ab1ec4548cfbcd3b 0000-0002-9355-4306 Jodie Davies-Thompson Jodie Davies-Thompson true false 2024-09-03 PSYS Individuals with developmental prosopagnosia (DP) experience severe face memory deficits that are often accompanied by impairments in face perception. Images of human facial features are better discriminated between when they are presented in the locations on the visual field that they typically appear in while viewing human faces in daily life, than in locations which they do not typically appear (i.e., better performance for eyes in the upper visual field, and better performance for mouths in the lower visual field). These feature-to-location tuning effects (FLEs) can be explained by a retinotopically organised visual statistical learning mechanism. We had a large group of DP participants (N = 64), a control group (N = 74) and a group of individuals with a mild form of DP (N = 58) complete a single-feature discrimination task to determine whether face perception deficits in DP can be accounted for by an impairment in face feature-to-location tuning. The results showed that individuals with DP did not have significant FLEs, suggesting a marked impairment in the underlying visual statistical learning mechanism. In contrast, the mild DP group showed normal FLE effects which did not differ from the control group. Both DP groups had impaired single-feature processing (SFP) as compared to the control group. We also examined the effects of age on FLEs and SFP. Journal Article Brain Sciences 14 8 815 MDPI AG 2076-3425 prosopagnosia; face processing; retinotopic; feature processing; face map 15 8 2024 2024-08-15 10.3390/brainsci14080815 COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University Other 2024-10-28T13:39:58.6634003 2024-09-03T14:27:45.4134524 Faculty of Medicine, Health and Life Sciences School of Psychology John Towler 0000-0002-5132-1969 1 Dan Morgan 2 Jodie Davies-Thompson 0000-0002-9355-4306 3 67547__32747__31ce33fc8d8949d0bfc16563621b651d.pdf 67547.VoR.pdf 2024-10-28T13:38:44.6689106 Output 914174 application/pdf Version of Record true © 2024 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. true eng https://creativecommons.org/licenses/by/4.0/
title Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
spellingShingle Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
John Towler
Dan Morgan
Jodie Davies-Thompson
title_short Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
title_full Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
title_fullStr Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
title_full_unstemmed Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
title_sort Impaired Face Feature-to-Location Statistical Learning and Single-Feature Discrimination in Developmental Prosopagnosia
author_id_str_mv 5bc86619011fcaa9caeb27d7f89b8e9e
c24b8e24914a5e54f200db48b661c00c
0f228cbf8dfc2a66ab1ec4548cfbcd3b
author_id_fullname_str_mv 5bc86619011fcaa9caeb27d7f89b8e9e_***_John Towler
c24b8e24914a5e54f200db48b661c00c_***_Dan Morgan
0f228cbf8dfc2a66ab1ec4548cfbcd3b_***_Jodie Davies-Thompson
author John Towler
Dan Morgan
Jodie Davies-Thompson
author2 John Towler
Dan Morgan
Jodie Davies-Thompson
format Journal article
container_title Brain Sciences
container_volume 14
container_issue 8
container_start_page 815
publishDate 2024
institution Swansea University
issn 2076-3425
doi_str_mv 10.3390/brainsci14080815
publisher MDPI AG
college_str Faculty of Medicine, Health and Life Sciences
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hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
document_store_str 1
active_str 0
description Individuals with developmental prosopagnosia (DP) experience severe face memory deficits that are often accompanied by impairments in face perception. Images of human facial features are better discriminated between when they are presented in the locations on the visual field that they typically appear in while viewing human faces in daily life, than in locations which they do not typically appear (i.e., better performance for eyes in the upper visual field, and better performance for mouths in the lower visual field). These feature-to-location tuning effects (FLEs) can be explained by a retinotopically organised visual statistical learning mechanism. We had a large group of DP participants (N = 64), a control group (N = 74) and a group of individuals with a mild form of DP (N = 58) complete a single-feature discrimination task to determine whether face perception deficits in DP can be accounted for by an impairment in face feature-to-location tuning. The results showed that individuals with DP did not have significant FLEs, suggesting a marked impairment in the underlying visual statistical learning mechanism. In contrast, the mild DP group showed normal FLE effects which did not differ from the control group. Both DP groups had impaired single-feature processing (SFP) as compared to the control group. We also examined the effects of age on FLEs and SFP.
published_date 2024-08-15T13:39:56Z
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