Efficacy of attention bias modification via smartphones in a large population sample.
Efficacy of attention bias modification via smartphones in a large population sample.
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DOI：
10.1098/rsos.211629
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发表时间：
2022-08
影响因子：
3.5
通讯作者：
Robinson, Oliver
中科院分区：
文献类型：
--
作者：
Chelliah, Alysha;Robinson, Oliver
关键词：
负面情感偏向是焦虑和抑郁的一个关键特征，它们支持和促进负面情绪。偏差修正旨在通过计算机化的训练来减少这些偏差，但效果参差不齐，而且尚未进行大规模测试。其目的是在大样本中确定通过智能手机进行的偏见修正是否可以改善情绪。总体而言，153 385名自我参照参与者被随机分配到修改或假偏见训练中，进行点探查或视觉搜索任务。兴趣的主要结果是情绪的平衡，根据积极和消极的影响时间表进行评估。总共有22933名参与者被纳入分析，他们至少提供了两种情绪评级。有大量的参与者流失。在其余较小的样本中，结果支持视觉搜索修改将导致情绪改善的预测(两次评级后，p=0.01，d=0.05，N=2588；95%CI[1.75，6.54]；p=0.001，d=0.32，六次评级后N=118)，这在假版本中没有看到(两次评级后N=4818；六次评级后N=138)。修改斑点探头与情绪改善无关(p=0.52)。视觉搜索，而不是点探测，偏见修正略有改善，但显著改善了情绪。虽然这种效应的规模非常小，而且可能会导致参与者大量减少，但它可能值得考虑作为当前治疗的辅助手段。
Negative affective biases are a key feature of anxiety and depression that uphold and promote negative mood. Bias modification aims to reduce these biases using computerized training, but shows mixed success and has not been tested at scale. The aim was to determine whether bias modification delivered via smartphones can improve mood in a large sample. In total, 153 385 self-referring participants were randomly assigned to modification or sham bias training on a dot-probe or visual-search task. The primary outcome of interest was balance of mood, assessed on the Positive and Negative Affect Schedule. In total, 22 933 participants who provided at least two mood ratings were included in analyses. There was a large amount of participant attrition. In the remaining smaller sample, results supported the prediction that visual-search modification would result in improved mood (95%CI [0.10, 0.82]; p = 0.01, d = 0.05, N = 2588 after two ratings; 95%CI [1.75,6.54]; p = 0.001, d = 0.32, N = 118 after six ratings), which was not seen for the sham version (N = 4818 after two ratings; N = 138 after six ratings). Dot-probe modification was not associated with mood improvements (p = 0.52). Visual-search, but not dot-probe, bias modification slightly but significantly improved mood. Although this effect size is very small and subject to large participant drop-off, it might be worth considering an adjunct to current treatments.
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