Internal reliability of the alcohol-related visual probe task is increased by utilising personalised stimuli and eye-tracking
Internal reliability of the alcohol-related visual probe task is increased by utilising personalised stimuli and eye-tracking
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DOI：
10.1016/j.drugalcdep.2015.07.672
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发表时间：
2015-10-01
影响因子：
4.2
通讯作者：
Jones, Andrew
中科院分区：
文献类型：
--
作者：
Christiansen, Paul;Mansfield, Rosie;Jones, Andrew
背景资料：在目前的研究中，我们调查的内部可靠性的视觉探测任务测量的注意力偏差的物质相关cues. Method的，可以通过将眼动跟踪方法和个性化的stimulations.Method：60社会饮酒者完成了两个视觉探测任务：一个广泛的不同的酒精图片，其他只包含图像的参与者的首选饮料。注意力偏差推断从手动反应时间探针取代的图片，并从持续时间的眼动固定对图片（凝视停留时间）。结果：内部可靠性是最高的个性化（与一般）酒精刺激，和眼睛跟踪（与手动反应时间）措施的注意力偏差。反应时（α = .73）和凝视停留时间措施（α = .76）的注意力偏差个性化酒精刺激的内部可靠性是可以接受的。一般酒精刺激的注意力偏差指数的内部可靠性较差，但与反应时间测量（α = .19）相比，凝视停留时间（α = .51）更好。对个性化刺激的注意力偏差大于一般刺激的偏差，但仅用于反应时间测量。注意力偏差和酒精消费或crawing.Conclusions：采取个性化的刺激和眼动监测的措施之间没有统计学显着的关联显着提高了酒精相关的视觉探测任务的内部可靠性。(C)2015爱思唯尔爱尔兰有限公司版权所有。
Background: In the current study, we investigated whether the internal reliability of the visual probe task measure of attentional bias for substance-related cues could be improved by incorporating eye-tracking methods and personalised stimuli.Method: Sixty social drinkers completed two visual probe tasks: one with a broad range of different alcohol pictures, the other containing only images of the participants' preferred drink. Attentional bias was inferred from manual reaction times to probes replacing the pictures, and from the duration of eye movement fixations towards the pictures (gaze dwell time).Results: Internal reliability was highest for personalised (versus general) alcohol stimuli, and for eye-tracking (versus manual reaction time) measures of attentional bias. The internal reliability of both reaction time (alpha = .73) and gaze dwell time measures (alpha = .76) of attentional bias for personalised alcohol stimuli was acceptable. Internal reliability of indices of attentional bias for general alcohol stimuli was inferior, although better for the gaze dwell time (alpha = .51) compared to the reaction time measure (alpha = .19). Attentional bias towards personalised stimuli was larger than bias to general stimuli, but only for the reaction time measure. There were no statistically significant associations between measures of attentional bias and alcohol consumption or craving.Conclusions: Adopting personalised stimuli and eye movement monitoring significantly improves the internal reliability of the alcohol-related visual probe task. (C) 2015 Elsevier Ireland Ltd. All rights reserved.