Document Detail

A chamber-experiment investigation of the interaction between perceptions of noise and odor in humans.
MedLine Citation:
PMID:  14586588     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: This study was designed to investigate human comfort and health effects following exposure to noise and odor and to explore the interaction between perceptions of noise and odor in humans. MATERIALS AND METHODS: Nine healthy subjects were randomly exposed to noise, odor, and their combination, in a 3 x 3 Latin square design for 80 min in an exposure chamber. Continuous noise was broadcast at an average level of 75 dBA by a loudspeaker, and odor was provided by furfurylmercaptan (a coffee-aroma constituent). A standardized 28-item questionnaire, together with mood-scale ratings, nasal dimensions by acoustic rhinometry, addition tests for distraction, and skin humidity, were performed before and at the end of exposure. RESULTS: In the questionnaire investigation, the perceived "sound level" was significantly affected by noise and the combined exposures, while "odor intensity", "air quality", and "need more ventilation" was significantly affected by odor and the combined exposures. Perceptions of symptoms became worse with increasing exposure time, such as perceived "dry nose" and "sleepiness" by odor and combined exposures, "headache" by noise, "concentration difficulty", "general well being", and "stressed by being in the chamber" by noise, odor and combined exposures. In addition, the occurrence of interactions was analyzed by comparison of the ratings of perceived "sound level", "odor intensity", "air quality", and "need more ventilation" during the combined exposure with two single exposures. Insignificant interaction was found but it indicated a decreased tendency to perceptions of discomfort from "odor intensity", "air quality", and "need for more ventilation" when noise was added to odor exposure. CONCLUSION: It may be concluded that noise and odor cause discomfort in humans. Moreover, the study might indicate that additions of noise reduce (mask) the perception of discomfort from odor, and additions of odor have no or little affect on the perception of noise.
Zhiwei Pan; S?ren K Kjaergaard; Lars M?lhave
Related Documents :
11894778 - Effects of acoustic overstimulation on cochlear evoked potentials.
2130868 - The effects of noise on vision efficiency.
14525578 - Noise exposure in the orthopaedic operating theatre: a significant health hazard.
3472328 - Temporary threshold shift induced by noise exposure and moderate salicylate intake.
10396848 - Temporal and spatial complexity measures for electroencephalogram based brain-computer ...
9566628 - The mismatch negativity for duration decrement of auditory stimuli in healthy subjects.
Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial     Date:  2003-08-28
Journal Detail:
Title:  International archives of occupational and environmental health     Volume:  76     ISSN:  0340-0131     ISO Abbreviation:  Int Arch Occup Environ Health     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-10-30     Completed Date:  2004-03-23     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  7512134     Medline TA:  Int Arch Occup Environ Health     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  598-604     Citation Subset:  IM    
Department of Environmental and Occupational Medicine, University of Aarhus, Vennelyst Boulevard 6, 8000 Aarhus, Denmark.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Environmental Exposure*
Random Allocation
Stress, Psychological

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The critical power model for intermittent exercise.
Next Document:  Melanocortins applied intravitreally delay retinal dystrophy in Royal College of Surgeons rats.