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Det maskerande brusljudets påverkan på inlärningen av visuell information: om effekten av maskerande brusljud i öppna kontorslandskap
University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
2012 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
The impact of masking noise on the learning ability of visual information : the effect of masking noise in open-plan offices (English)
Abstract [sv]

Denna experimentella studie undersökte om maskerande brusljud på ovidkommande tal påverkar inlärning av visuell information. Experimentet genomfördes i ett laboratorium med 32 försöksdeltagare. Visuella ord presenterades för försöksdeltagarna samtidigt som auditivt tal från samma semantiska kategori, med eller utan maskerande brusljud, presenterades. De visuella orden skulle återges i valfri ordning. Resultatet av studien visar att ett maskerande brusljud på ovidkommande tal har positiv effekt på inlärningsförmågan. Detta visades av att försökspersonerna mindes fler visuellt presenterade ord samt att de lyckades ignorera det ovidkommande talet bättre då talet maskerades av ett brusljud jämfört med om talet inte maskerades av ett brusljud. Resultaten av studien kan med fördel tillämpas i öppna kontorslandskap. Detta då medarbetare i öppna kontorslandskap ofta utför kognitivt krävande uppgifter i en bullrig miljö innehållande bland annat bakgrundstal. Ett maskerande brusljud kan minska störningen av ovidkommande kontorsljud och ovidkommande tal och på så sätt positivt påverka arbetsprestationen.

Abstract [en]

This study examined if a masking white noise on irrelevant speech affects the encoding of visual information. An experiment was carried out in a laboratory with 32 participants. The participants were presented to a series of written words and were prompted to recall these words in any order. While the participants studied the written words, irrelevant speech from the same semantic category was presented with or without a masking noise. The participants were told to ignore the irrelevant speech. The results of this study showed that the number of intrusions from the irrelevant speech decreases and the number of recalled written words increases when the irrelevant speech is masked by a white noise compared to irrelevant speech without a masking noise. The findings of this study could be applied in the acoustic design of open-plan offices where cognitive tasks, such as reading comprehension and proofreading, are performed in a noisy environment. A white noise can reduce the intelligibility of office noise and irrelevant speech, which have positive effect on work performance.  

Place, publisher, year, edition, pages
2012. , 25 p.
Keyword [en]
masking noise, irrelevant speech, learning ability, open-plan offices
Keyword [sv]
maskerande brusljud, ovidkommande tal, inlärning, öppna kontorslanskap
National Category
URN: urn:nbn:se:hig:diva-12404Archive number: SGPAK-V12-15OAI: diva2:540606
Subject / course
Educational program
Human resources and labour relations
Social and Behavioural Science, Law
Available from: 2012-08-06 Created: 2012-07-10 Last updated: 2012-08-06Bibliographically approved

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