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Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion

Rationale: Among the serious consequences of alcohol use disorder (AUD) is the reduced ability to process visual information. It is also generally agreed that AUD tends to occur with disturbed excitation–inhibition (EI) balance in the central nervous system. Thus, a specific visual behavioral probe...

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Autores principales: Gao, Guoqing, Yin, Liangshuang, Cheng, Jun, Tao, Rui, Liu, Yu, Pang, Liangjun, Wang, Zhengchun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8342804/
https://www.ncbi.nlm.nih.gov/pubmed/34366909
http://dx.doi.org/10.3389/fpsyt.2021.647615
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author Gao, Guoqing
Yin, Liangshuang
Cheng, Jun
Tao, Rui
Liu, Yu
Pang, Liangjun
Wang, Zhengchun
author_facet Gao, Guoqing
Yin, Liangshuang
Cheng, Jun
Tao, Rui
Liu, Yu
Pang, Liangjun
Wang, Zhengchun
author_sort Gao, Guoqing
collection PubMed
description Rationale: Among the serious consequences of alcohol use disorder (AUD) is the reduced ability to process visual information. It is also generally agreed that AUD tends to occur with disturbed excitation–inhibition (EI) balance in the central nervous system. Thus, a specific visual behavioral probe could directly qualify the EI dysfunction in patients with AUD. The tilt illusion (TI) is a paradigmatic example of contextual influences on perception of central target. The phenomenon shows a characteristic dependence on the angle between the inducing surround stimulus and the central target test. For small angles, there is a repulsion effect; for larger angles, there is a smaller attraction effect. The center-surround inhibition in tilt repulsion is considered to come from spatial orientational interactions between orientation-tuned neurons in the primary visual cortex (V1), and tilt attraction is from higher-level effects of orientation processing in the visual information processing. Objectives: The present study focuses on visual spatial information processing and explores whether chronic AUD patients in abstinence period exhibited abnormal TI compared with healthy controls. Methods: The participants are 30 male volunteers (20–46 years old) divided into two groups: the study group consists of 15 clinically diagnosed AUD patients undergoing abstinence from alcohol, and the control group consists of 15 healthy volunteers. The TI consists of a center target surround with an annulus (both target and annulus are sinusoidal grating with spatial frequency = 2 cycles per degree). The visual angle between center and surround is a variable restricted to 0°, ±15°, ±30°, or ±75°. For measuring the TI, participants have to report whether the center target grating orientation tilted clockwise or counterclockwise from the internal vertical orientation by pressing corresponding keys on the computer keyboard. No feedback is provided regarding response correctness. Results: The results reveal significantly weaker tilt repulsion effect under surround orientation ±15° (p < 0.05) and higher lapse rate (attention limitation index) under all tested surround orientations (all ps < 0.05) in patients with chronic AUD compared with health controls. Conclusions: These results provide psychophysical evidence that visual perception of center-contextual stimuli is different between AUD and healthy control groups.
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spelling pubmed-83428042021-08-07 Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion Gao, Guoqing Yin, Liangshuang Cheng, Jun Tao, Rui Liu, Yu Pang, Liangjun Wang, Zhengchun Front Psychiatry Psychiatry Rationale: Among the serious consequences of alcohol use disorder (AUD) is the reduced ability to process visual information. It is also generally agreed that AUD tends to occur with disturbed excitation–inhibition (EI) balance in the central nervous system. Thus, a specific visual behavioral probe could directly qualify the EI dysfunction in patients with AUD. The tilt illusion (TI) is a paradigmatic example of contextual influences on perception of central target. The phenomenon shows a characteristic dependence on the angle between the inducing surround stimulus and the central target test. For small angles, there is a repulsion effect; for larger angles, there is a smaller attraction effect. The center-surround inhibition in tilt repulsion is considered to come from spatial orientational interactions between orientation-tuned neurons in the primary visual cortex (V1), and tilt attraction is from higher-level effects of orientation processing in the visual information processing. Objectives: The present study focuses on visual spatial information processing and explores whether chronic AUD patients in abstinence period exhibited abnormal TI compared with healthy controls. Methods: The participants are 30 male volunteers (20–46 years old) divided into two groups: the study group consists of 15 clinically diagnosed AUD patients undergoing abstinence from alcohol, and the control group consists of 15 healthy volunteers. The TI consists of a center target surround with an annulus (both target and annulus are sinusoidal grating with spatial frequency = 2 cycles per degree). The visual angle between center and surround is a variable restricted to 0°, ±15°, ±30°, or ±75°. For measuring the TI, participants have to report whether the center target grating orientation tilted clockwise or counterclockwise from the internal vertical orientation by pressing corresponding keys on the computer keyboard. No feedback is provided regarding response correctness. Results: The results reveal significantly weaker tilt repulsion effect under surround orientation ±15° (p < 0.05) and higher lapse rate (attention limitation index) under all tested surround orientations (all ps < 0.05) in patients with chronic AUD compared with health controls. Conclusions: These results provide psychophysical evidence that visual perception of center-contextual stimuli is different between AUD and healthy control groups. Frontiers Media S.A. 2021-07-23 /pmc/articles/PMC8342804/ /pubmed/34366909 http://dx.doi.org/10.3389/fpsyt.2021.647615 Text en Copyright © 2021 Gao, Yin, Cheng, Tao, Liu, Pang and Wang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychiatry
Gao, Guoqing
Yin, Liangshuang
Cheng, Jun
Tao, Rui
Liu, Yu
Pang, Liangjun
Wang, Zhengchun
Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title_full Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title_fullStr Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title_full_unstemmed Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title_short Effects of Chronic Alcohol Use Disorder on the Visual Tilt Illusion
title_sort effects of chronic alcohol use disorder on the visual tilt illusion
topic Psychiatry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8342804/
https://www.ncbi.nlm.nih.gov/pubmed/34366909
http://dx.doi.org/10.3389/fpsyt.2021.647615
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