Restorative Effects of Classroom Soundscapes on Children's Cognitive Performance.

Int J Environ Res Public Health · 2019 · PMC6352165 · PMID 30669677

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a possible trendno p-value reported

Additionally, the bell ring sound also showed a possible trend of reducing reaction time, while no difference in reaction time was shown after exposure to ambient noise and silence.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.