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Heavy and light smokers have slight differences in chromatic discrimination
Journal of Addictive Diseases ( IF 2.065 ) Pub Date : 2021-08-02 , DOI: 10.1080/10550887.2021.1950285
Gabriella M Silva 1, 2 , Thiago P Fernandes 1, 2 , Fatima M Felisberti 3 , Milena E Oliveira 1, 2 , Natalia L Almeida 1, 2 , Jandirlly J Souto 1, 2 , Natanael A Santos 1, 2
Affiliation  

Abstract

Objectives: The effects of smoking on color vision have been scarcely studied. To bridge such gap, this study examined if there were differences in chromatic discrimination between heavy and light smokers. Methods: The psychophysical Trivector test was used to evaluate chromatic discrimination in healthy controls (n = 36), heavy smokers (n = 29), and light smokers (n = 32). The subject’s task was to identify the orientation of the Landolt C ring gap – presented and randomized in one of the four positions (e.g., up, down, right, and left). Results: The thresholds for Protan (red), Deutan (green) and Tritan (blue) were higher in heavy smokers compared to nonsmokers but not to light smokers. Conclusions: The results confirm that heavy smoking and chronic exposure to its harmful compounds affect color discrimination when compared to light smoking; and this is more pronounced in heavy smokers than light smokers. This is particularly important to understand the differences among smokers on visual and multisensory processing.



中文翻译:

重度和轻度吸烟者在色差上略有差异

摘要

目的:很少有人研究吸烟对色觉的影响。为了弥合这种差距,这项研究检查了重度和轻度吸烟者之间的色差是否存在差异。方法:心理物理三向量测试用于评估健康对照组(n  = 36)、重度吸烟者(n  = 29)和轻度吸烟者(n  = 32)的色差。受试者的任务是确定 Landolt C 环间隙的方​​向——呈现并随机出现在四个位置之一(例如,上、下、右和左)。结果:与不吸烟者相比,重度吸烟者的 Protan(红色)、Deutan(绿色)和 Tritan(蓝色)的阈值更高,但与轻度吸烟者相比则不然。结论:结果证实,与轻度吸烟相比,重度吸烟和长期接触其有害化合物会影响颜色辨别;这在重度吸烟者中比在轻度吸烟者中更为明显。这对于了解吸烟者在视觉和多感官处理方面的差异尤为重要。

更新日期:2021-08-02
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