The aim of this study was to find out what are the effects of three different sound environments on performance of cognitive tasks of varying complexity. These three sound environments were ‘speech', ‘masked speech' and ‘continuous noise'. They corresponded to poor, acceptable and perfect acoustical privacy in an open-plan office, respectively. The speech transmission indices were 0.00, 0.30 and 0.80, respectively. Sounds environments were presented at 48 dBA. The laboratory experiment on 36 subjects lasted for 4 h for each subject. Proofreading performance deteriorated in the ‘speech' ( p
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Document Type: Research Article
Finnish Institute of Occupational Health, Laboratory of Ventilation and Acoustics, Lemminkäisenkatu 14–18 B, FIN-20520, Turku, Finland
University of Turku, Department of Psychology, FIN-20014, Turku, Finland
September 15, 2006
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