The effects of acute alcohol intake on endogenous vs. exogenous attention in visual perception

IF 3.6 2区医学 Q1 PSYCHOLOGY, CLINICAL

Addictive behaviors Pub Date : 2025-08-24 DOI:10.1016/j.addbeh.2025.108465

Dan Huang , Kun Liao , Fusong Chen , Yao Chen

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引用次数: 0

Abstract

Acute alcohol consumption is known to impair visual perception, yet the underlying mechanisms remain poorly understood. Visual perception is influenced by visual attention, which comprises two distinct components: endogenous (voluntary) and exogenous (involuntary) attention. This study investigated how a moderate alcohol dose alters attentional modulation of visual perception. Participants performed an orientation discrimination task, reporting the tilt of a peripheral Gabor patch target. Valid, neutral, or invalid precues—central (endogenous) or peripheral (exogenous)—were presented to manipulate attention. Perceptual sensitivity was compared between alcohol-free and alcohol-intake conditions. Results revealed that alcohol spared endogenous attention’s ability to enhance sensitivity at cued locations and reduce interference at invalidly cued locations. In contrast, exogenous attention’s facilitatory effects at cued positions were impaired, while its effects at uncued locations remained intact. This dissociation indicates that endogenous and exogenous attention rely on distinct neural mechanisms, with alcohol selectively disrupting exogenous orienting. These findings clarify how alcohol impairs visual perception and underscore the importance of differentiating attentional subsystems in neurocognitive studies.

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急性酒精摄入对内源性和外源性视觉知觉注意的影响

众所周知，急性饮酒会损害视觉感知，但其潜在机制尚不清楚。视觉知觉受到视觉注意的影响，视觉注意包括两个不同的组成部分：内源性（自愿）和外源性（非自愿）注意。本研究调查了适量酒精如何改变视觉知觉的注意调节。参与者完成了一个定向辨别任务，报告外围Gabor贴片目标的倾斜。有效的、中性的或无效的前驱——中枢（内源性）或外周（外源性）——被提出来操纵注意力。比较了不饮酒和饮酒两种情况下的知觉敏感性。结果表明，酒精保留了内源性注意增强提示位置敏感性和减少无效提示位置干扰的能力。相比之下，外源性注意在提示位置的促进作用受损，而其在未提示位置的作用保持完整。这种分离表明内源性和外源性注意依赖于不同的神经机制，酒精选择性地破坏外源性定向。这些发现阐明了酒精如何损害视觉感知，并强调了在神经认知研究中区分注意子系统的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Addictive behaviors 医学-药物滥用

CiteScore

8.40

自引率

4.50%

发文量

283

审稿时长

46 days

期刊介绍： Addictive Behaviors is an international peer-reviewed journal publishing high quality human research on addictive behaviors and disorders since 1975. The journal accepts submissions of full-length papers and short communications on substance-related addictions such as the abuse of alcohol, drugs and nicotine, and behavioral addictions involving gambling and technology. We primarily publish behavioral and psychosocial research but our articles span the fields of psychology, sociology, psychiatry, epidemiology, social policy, medicine, pharmacology and neuroscience. While theoretical orientations are diverse, the emphasis of the journal is primarily empirical. That is, sound experimental design combined with valid, reliable assessment and evaluation procedures are a requisite for acceptance. However, innovative and empirically oriented case studies that might encourage new lines of inquiry are accepted as well. Studies that clearly contribute to current knowledge of etiology, prevention, social policy or treatment are given priority. Scholarly commentaries on topical issues, systematic reviews, and mini reviews are encouraged. We especially welcome multimedia papers that incorporate video or audio components to better display methodology or findings. Studies can also be submitted to Addictive Behaviors? companion title, the open access journal Addictive Behaviors Reports, which has a particular interest in ''non-traditional'', innovative and empirically-oriented research such as negative/null data papers, replication studies, case reports on novel treatments, and cross-cultural research.