Selectively attending to natural scenes after alcohol consumption: An ERP analysis
Selectively attending to natural scenes after alcohol consumption: An ERP analysis
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DOI：
10.1016/j.biopsycho.2005.06.009
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发表时间：
2006-04-01
影响因子：
2.6
通讯作者：
Stegagno, L
中科院分区：
文献类型：
--
作者：
De Cesarei, A;Codispoti, M;Stegagno, L
酒精对认知、情绪和行为过程的影响与注意力受损有关。由于注意是在特定的认知子系统水平上运作的，最近的研究表明，酒精对特定的知觉后过程（如反应选择和工作记忆）有影响。测量事件相关电位，本研究的重点是知觉过程，利用分类任务，参与者必须决定是否简要介绍的图像包含动物或没有。研究结果表明，早期差异ERP活动的目标相比，非目标图像，酒精中毒后减少。因此，酒精中毒的有害影响，在知觉层面的处理被认为是反映自上而下（类别相关）和自下而上（刺激驱动）的过程的相互作用。此外，知觉后过程也受到酒精中毒的损害。(c)2005 Elsevier B.V.保留所有权利。
Alcohol effects on cognitive, emotional and behavioral processes have been linked to an impairment of attention. Because attention operates at the level of specific cognitive subsystems, recent studies demonstrated alcohol effects in specific post-perceptual processes such as response selection and working memory. Measuring event-related potentials, the present study focused on perceptual processes by utilizing a categorization task where participants had to decide whether briefly presented images contained an animal or not. Findings demonstrate an early differential ERP activity for target compared to non-target images, which was reduced after alcohol intoxication. Thus, alcohol intoxication had deleterious effects at the perceptual level of processing considered to reflect the interaction of top-down (category-related) and bottom-up (stimulus-driven) processes. In addition, post-perceptual processes were also impaired by alcohol intoxication. (c) 2005 Elsevier B.V. All rights reserved.