嘈杂环境中面对面聊天后，注意力反而变快，疲劳感却上升。
Short-term cognitive fatigue of spatial selective attention after face-to-face conversations in virtual noisy environments
- 在虚拟混响环境中进行30分钟对话，测试听觉空间注意力
- 对话后反应时间缩短，准确率无显著变化
- 个体差异大，训练效应显著，适合认知神经研究者
在鸡尾酒会情境中，空间选择性注意是沟通的重要能力，但可能受短期认知疲劳影响。本研究测试了在高度生态化的场景下，一次费力的面对面对话是否会导致听觉空间选择性注意任务表现下降。20名听力正常年轻参与者在三种条件下分别完成任务：(1) 在虚拟混响房间中进行30分钟自由话题的面对面对话，伴有模拟干扰对话和72 dB SPL背景人声噪音；(2) 仅被动聆听干扰对话与人声噪音；(3) 在安静环境中进行对话。结果发现，噪声环境下对话及被动聆听后，自我报告的努力感和疲劳感均显著高于安静环境。然而，与预期相反，注意力任务的反应时间反而缩短，各条件组别准确率未出现系统性变化。值得注意的是，在自身对照设计中，单次隔日训练后仍观察到强烈的个体间训练效应。
原文摘要 · Abstract (English)
Spatial selective attention is an important asset for communication in cocktail party situations but may be compromised by short-term cognitive fatigue. Here we tested whether an effortful conversation in a highly ecological setting depletes task performance in an auditory spatial selective attention task. Young participants with normal hearing performed the task before and after (1) having a real dyadic face-to-face conversation on a free topic in a virtual reverberant room with simulated interfering conversations and background babble noise at 72 dB SPL for 30 minutes, (2) passively listening to the interfering conversations and babble noise, or (3) having the conversation in quiet. Self-reported perceived effort and fatigue increased after conversations in noise and passive listening relative to the reports after conversations in quiet. In contrast to our expectations, response times in the attention task decreased, rather than increased, after conversation in noise and accuracy did not change systematically in any of the conditions on the group level. Unexpectedly, we observed strong training effects between the individual sessions in our within-subject design even after one hour of training on a different day.
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