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Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm

In healthy populations, visual abilities are characterized by a faster and more efficient processing of global features in a stimulus compared to local ones. This phenomenon is known as the global precedence effect (GPE), which is demonstrated by (1) a global advantage, resulting in faster response...

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Autores principales: Pitel, Anne Lise, Laniepce, Alice, Boudehent, Céline, Poirel, Nicolas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10253928/
https://www.ncbi.nlm.nih.gov/pubmed/37297850
http://dx.doi.org/10.3390/jcm12113655
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author Pitel, Anne Lise
Laniepce, Alice
Boudehent, Céline
Poirel, Nicolas
author_facet Pitel, Anne Lise
Laniepce, Alice
Boudehent, Céline
Poirel, Nicolas
author_sort Pitel, Anne Lise
collection PubMed
description In healthy populations, visual abilities are characterized by a faster and more efficient processing of global features in a stimulus compared to local ones. This phenomenon is known as the global precedence effect (GPE), which is demonstrated by (1) a global advantage, resulting in faster response times for global features than local features and (2) interference from global distractors during the identification of local targets, but not vice versa. This GPE is essential for adapting visual processing in everyday life (e.g., extracting useful information from complex scenes). We investigated how the GPE is affected in patients with Korsakoff’s syndrome (KS) compared to patients with severe alcohol use disorder (sAUD). Three groups (including healthy controls, patients with KS and patients with sAUD) completed a global/local visual task in which predefined targets appeared at the global or local level during either congruent or incongruent (i.e., interference) situations. The results showed that healthy controls (N = 41) presented a classical GPE, while patients with sAUD (N = 16) presented neither a global advantage nor global interference effects. Patients with KS (N = 7) presented no global advantage and an inversion of the interference effect, characterized by strong interference from local information during global processing. The absence of the GPE in sAUD and the interference from local information in KS have implications in daily-life situations, providing preliminary data for a better understanding of how these patients perceive their visual world.
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spelling pubmed-102539282023-06-10 Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm Pitel, Anne Lise Laniepce, Alice Boudehent, Céline Poirel, Nicolas J Clin Med Article In healthy populations, visual abilities are characterized by a faster and more efficient processing of global features in a stimulus compared to local ones. This phenomenon is known as the global precedence effect (GPE), which is demonstrated by (1) a global advantage, resulting in faster response times for global features than local features and (2) interference from global distractors during the identification of local targets, but not vice versa. This GPE is essential for adapting visual processing in everyday life (e.g., extracting useful information from complex scenes). We investigated how the GPE is affected in patients with Korsakoff’s syndrome (KS) compared to patients with severe alcohol use disorder (sAUD). Three groups (including healthy controls, patients with KS and patients with sAUD) completed a global/local visual task in which predefined targets appeared at the global or local level during either congruent or incongruent (i.e., interference) situations. The results showed that healthy controls (N = 41) presented a classical GPE, while patients with sAUD (N = 16) presented neither a global advantage nor global interference effects. Patients with KS (N = 7) presented no global advantage and an inversion of the interference effect, characterized by strong interference from local information during global processing. The absence of the GPE in sAUD and the interference from local information in KS have implications in daily-life situations, providing preliminary data for a better understanding of how these patients perceive their visual world. MDPI 2023-05-25 /pmc/articles/PMC10253928/ /pubmed/37297850 http://dx.doi.org/10.3390/jcm12113655 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pitel, Anne Lise
Laniepce, Alice
Boudehent, Céline
Poirel, Nicolas
Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title_full Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title_fullStr Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title_full_unstemmed Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title_short Impaired Global Precedence Effect in Severe Alcohol Use Disorder and Korsakoff’s Syndrome: A Pilot Exploration through a Global/Local Visual Paradigm
title_sort impaired global precedence effect in severe alcohol use disorder and korsakoff’s syndrome: a pilot exploration through a global/local visual paradigm
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10253928/
https://www.ncbi.nlm.nih.gov/pubmed/37297850
http://dx.doi.org/10.3390/jcm12113655
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