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Spearcon compression levels influence the gap in comprehension between untrained and trained listeners.
Journal of Experimental Psychology: Applied ( IF 2.813 ) Pub Date : 2020-09-10 , DOI: 10.1037/xap0000330
Monika Srbinovska 1 , Isaac S Salisbury 1 , Robert G Loeb 2 , Penelope M Sanderson 1
Affiliation  

Auditory alarms in hospitals are ambiguous and do not provide enough information to support doctors and nurses' awareness of patient events. A potential alternative is the use of short segments of time-compressed speech, or spearcons. However, sometimes it might be desirable for patients to understand spearcons and sometimes not. We used reverse hierarchy theory to hypothesize that there will be a degree of compression where spearcons are intelligible for trained listeners but not for untrained listeners. In Experiment 1, spearcons were compressed to either 20% or 25% of their original duration. Their intelligibility was very high for trained participants, but also quite high for untrained participants. In Experiment 2 each word within each spearcon was compressed to a different degree based on the results of Experiment 1. This technique was effective in creating the desired difference in spearcon intelligibility between trained and untrained listeners. An implication of these results is that manipulating the degree of compression of spearcons "by word" can increase the effect of training so that untrained listeners reliably do not understand the content of the spearcons. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译:

Spearcon 压缩级别会影响未受过训练和受过训练的听众之间的理解差距。

医院中的听觉警报是模棱两可的,无法提供足够的信息来支持医生和护士了解患者事件。一个潜在的替代方法是使用时间压缩语音的短片段或矛。但是,有时可能希望患者了解矛状器械,有时则不了解。我们使用逆向层次理论来假设会有一定程度的压缩,其中长矛对于受过训练的听众是可以理解的,但对于未受过训练的听众却是不可以理解的。在实验 1 中,长矛被压缩到原始持续时间的 20% 或 25%。对于受过训练的参与者来说,它们的可懂度非常高,但对于未受过训练的参与者来说也相当高。在实验 2 中,每个 spearcon 中的每个单词都根据实验 1 的结果被压缩到不同的程度。这种技术可以有效地在训练有素的听众和未经训练的听众之间创造所需的矛头可懂度差异。这些结果的一个含义是,“按单词”操纵 spearcon 的压缩程度可以增加训练的效果,从而使未受过训练的听众可靠地无法理解 spearcon 的内容。(PsycInfo 数据库记录 (c) 2021 APA,保留所有权利)。
更新日期:2020-09-10
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