A flicker paradigm for inducing change blindness reveals alcohol and cannabis information processing biases in social users
A flicker paradigm for inducing change blindness reveals alcohol and cannabis information processing biases in social users
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DOI：
10.1046/j.1360-0443.2003.00270.x
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发表时间：
2003-02-01
期刊：
影响因子：
6
通讯作者：
Copley, N
中科院分区：
文献类型：
--
作者：
Jones, BT;Jones, BC;Copley, N
目的 应用一种新的范式，利用视觉场景的瞬时变化来探索与酒精和大麻使用的“社会”水平相关的信息处理偏差。参与者男女学生志愿者（n = 200）不自我报告与物质相关的问题。在整个大学校园设置安静的测试区域。设计一种闪烁范式，用于诱导轻度和重度酒精社交使用者（实验 1，n = 100）以及社交使用者和非使用者的变化失明大麻（实验 2，n = 100）。探索了习惯性使用水平与检测到对分组的物质相关和中性物体的场景进行的单一物质相关或中性变化的潜伏期之间的关联。测量酒精使用量的测量是前一周最重饮酒日的单位数；大麻使用量为过去 12 个月的使用月数。变化检测延迟比较用于评估处理偏差。结果在这两项实验中，(i) 较重的社交用户比较轻的和非用户更快地检测到与物质相关的变化； (ii) 轻度使用者和非使用者比重度使用者更快地发现物质中性变化： (iii) 重度社会使用者比物质中性变化更快地发现与物质相关的变化； (iv) 较轻者和非使用者比物质相关变化更快地检测到物质中性变化。 结论 在社会使用层面发现酒精和大麻加工偏差，有可能影响未来的消费，因此值得进一步研究。
Aim To apply a new paradigm using transient changes to visual scenes to explore information processing biases relating to 'social' levels of alcohol and cannabis use.Participants Male and female student volunteers (n = 200) not self-reporting substance-related problems.Setting Quiet testing areas throughout the university campus.Design A flicker paradigm, for inducing change blindness with lighter and heavier social users of alcohol (experiment 1, n = 100) and social users and non-users of cannabis (experiment 2, n = 100). explored the associations between habitual level of use and the latency to detection of a single substance-related or neutral change made to a scene of grouped substance-related and neutral objects.Measurements Alcohol use was measured as the number of units of the heaviest drinking day from the previous week; cannabis use as the number of months of use in previous 12. Change-detection latency comparisons were used to evaluate processing biases.Findings In both experiments, (i) heavier social users detected substance-related changes quicker than lighter and non-users; (ii) lighter and non-users detected substance-neutral changes quicker than heavier users: (iii) heavier social users detected substance-related quicker than substance-neutral changes; and (iv) lighter and non-users detected substance-neutral changes quicker than substance-related changes.Conclusions Alcohol and cannabis processing biases are found at levels of social use, have the potential to influence future consumption and for this reason merit further research.