Department of Psychology, University of Winchester, Sparkford Road, Winchester, SO22 4NR, UK.
Department of Psychology, University of Portsmouth, Portsmouth, UK.
Psychopharmacology (Berl). 2022 Aug;239(8):2605-2617. doi: 10.1007/s00213-022-06148-y. Epub 2022 May 2.
Inattentional blindness (IB) describes the failure to notice salient but unexpected stimuli in one's focal visual field. It typically occurs while performing a demanding task (e.g. tracking and counting basketball passes), which consumes attentional resources. Alcohol intoxication is also known to reduce attentional resources, thereby potentially increasing IB and disrupting task performance.
To test the extent to which acute alcohol and task difficulty disrupt counting performance and increase the rate of IB across two experimental tasks.
To test the effects of alcohol consumption and task difficulty on IB, we used the Simons and Chabris (Percept 28:1059-1074, 1999) and Simons (2010) "gorilla in our midst" basketball clip in experiment 1 and abstract but analogous stimuli presented in a computerised alternative to that task in experiment 2.
IB was associated with increased (counting) task difficulty but not alcohol consumption. However, counting accuracy was impaired by both alcohol and increased task difficulty, with the largest detriment being for alcohol participants who noticed the salient but unexpected stimulus.
The absence of alcohol effects on IB in both experiments was unexpected and warrants further investigation in a field vs lab study comparison and in combination with baseline cognitive measures to test for alcohol expectancy and task compensation effects.
不注意盲视（IB）描述了在一个人的焦点视觉场中未能注意到明显但意外的刺激。它通常发生在执行一项要求很高的任务（例如，跟踪和计数篮球传球）时，此时注意力资源被消耗。众所周知，酒精中毒会减少注意力资源，从而可能增加 IB 并干扰任务表现。
测试急性酒精和任务难度在两个实验任务中对计数性能的破坏程度以及增加 IB 的速率。
为了测试酒精消耗和任务难度对 IB 的影响，我们使用了 Simons 和 Chabris（感知 28:1059-1074, 1999）和 Simons（2010）的“我们中间的大猩猩”篮球剪辑，在实验 1 中，并在实验 2 中使用计算机化的替代任务呈现抽象但类似的刺激。
IB 与增加的（计数）任务难度有关，但与酒精消耗无关。然而，酒精和增加的任务难度都会损害计数准确性，最大的损害是对于注意到明显但意外刺激的酒精参与者。
在两个实验中都没有观察到酒精对 IB 的影响是出乎意料的，需要在现场与实验室研究比较以及与基线认知测量相结合的情况下进一步调查，以测试酒精期望和任务补偿效应。
