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Year : 2007  |  Volume : 9  |  Issue : 34  |  Page : 1--7

Associations between noise sensitivity and sleep, subjectively evaluated sleep quality, annoyance, and performance after exposure to nocturnal traffic noise


Institute for Occupational Physiology at Dortmund University, Ardeystr. Dortmund, Fed. Rep., Germany

Correspondence Address:
B Griefahn
Institute for Occupational Physiology, Dortmund University, Ardeystr. 67, D-44139 Dortmund, Fed. Rep.
Germany
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1463-1741.34698

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In order to determine the influence of noise sensitivity on sleep, subjective sleep quality, annoyance, and performance after nocturnal exposure to traffic noise, 12 women and 12 men (age range, 19-28 years) were observed during four consecutive nights over a three weeks period. After a habituation night, the participants were exposed with weekly permuted changes to air, rail and road traffic noise. Of the four nights, one was a quiet night (32 dBA), while three were noisy nights with exposure to equivalent noise levels of 39, 44, and 50 dBA in a permuted order. The traffic noise caused alterations of most of the physiological parameters, subjective evaluation of sleep, annoyance, and performance. Correlations were found between noise sensitivity and subjective sleep quality in terms of worsened restoration, decreased calmness, difficulty to fall asleep, and body movements. The results suggest that alterations of subjective evaluation of sleep were determined by physical parameters of the noise but modified by individual factors like noise sensitivity.






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