Suppr超能文献

大麻使用对注意偏向于恐惧面孔的残留影响。

Residual effects of cannabis use on attentional bias towards fearful faces.

机构信息

The Department of Pharmacy Practice, Wayne State University, 259 Mack Ave., Detroit, MI 48201, United States.

The Department of Psychology, Colorado State University, 1876 Campus Delivery, Fort Collins, CO 80523-1876, United States.

出版信息

Neuropsychologia. 2018 Oct;119:482-488. doi: 10.1016/j.neuropsychologia.2018.09.008. Epub 2018 Sep 19.

Abstract

Cannabis use has increased since legalization in various states within the United States of America. Although much of the research on the neurological and psychological effects of cannabis has been on non-human animals, the current research suggests that it can have anxiolytic effects and also decrease some cognitive functioning (e.g. memory, emotional processing, etc.). Individuals with high anxiety have been suggested to have increased attentional bias towards threat-related stimuli. The current study measured event-related potential (ERP) during a dot-probe task with fearful and neutral facial expression to examine the residual effects of cannabis use on attentional bias. The results indicated that there was reduced attentional bias, as measured by the P1 component in cannabis users, which is similar to low anxious individuals. Additionally, there was no difference between users and non-users in N170, indicating that the residual effects of cannabis did not interfere with face processing. However, an exploratory correlation indicated that higher cannabis use was associated with reduced N170 towards fearful faces. Cannabis use was associated with enhanced N2pc, which would indicate greater spatial orientation of attention. These results suggest that cannabis use did have an effect on attentional bias towards fearful faces.

摘要

自美国各州大麻合法化以来,大麻的使用有所增加。尽管关于大麻对神经和心理影响的大部分研究都是在非人类动物身上进行的,但目前的研究表明,它可能具有抗焦虑作用,同时也会降低一些认知功能(例如记忆、情绪处理等)。有研究表明,焦虑程度较高的个体对与威胁相关的刺激表现出更高的注意力偏向。本研究通过恐惧和中性面部表情的点探测任务测量事件相关电位(ERP),以检查大麻使用对注意力偏向的残留影响。结果表明,大麻使用者的 P1 成分表明注意力偏向降低,这与低焦虑个体相似。此外,使用者和非使用者在 N170 方面没有差异,表明大麻的残留效应不会干扰面部处理。然而,一项探索性相关性表明,较高的大麻使用与对恐惧面孔的 N170 减少有关。大麻使用与增强的 N2pc 相关,这表明注意力的空间定向更强。这些结果表明,大麻使用确实对恐惧面孔的注意力偏向产生了影响。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验