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Tendens till sämre arbetsminne hos individer som inte vänjer sig vid lukt
Umeå University, Faculty of Social Sciences, Department of Psychology.
Umeå University, Faculty of Social Sciences, Department of Psychology.
2016 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

Luktämnen i omgivningen kan utgöra distraktorer som försämrar den kognitiva prestationen. Detta gör luktens påverkan till en viktig arbetsmiljöfråga. De flesta vänjer sig vid lukter i omgivningen – de habituerar. Men ibland sker inte denna tillvänjning. Syftet var att undersöka ifall det finns ett samband mellan skillnad i habituering till ett luktämne och arbetsminne och inhibering. En grupp av 40 individer i åldrarna 19 till 64 exponerades för n-butanol under 45 minuter. Deltagarna gjorde upprepade skattningar av luktämnets intensitet och delades in i grupperna: icke-habituerare och habituerare. Före och under exponeringen utförde deltagarna 3-back, ämnat att mäta arbetsminne, och Stroop, ämnat att mäta inhibering. Gruppen icke-habituerare tenderade att prestera sämre på 3-back både före och under exponeringen. Oförmåga till habituering kan vara ett beteendeuttryck för sämre arbetsminneskapacitet och eventuellt andra sårbarhetsfaktorer. Dessa faktorer bör undersökas vidare. 

Abstract [en]

Odorants in the environment can serve as distractors that impair cognitive performance. The impact of odors constitute an important occupational health issue. Most people get used to smells in the environment – they habituate. But occasionally habituation does not occur. The aim was to investigate whether there is a correlation between difference in habituation to an odorant and working memory and inhibition. A group of 40 individuals between the ages of 19 to 64, were exposed to n-butanol for 45 minutes. Participants made repeated ratings of intensity of the odorant. Two groups were created based on non-habituation and habituation. Before and during the exposure, the participants performed 3-back, used to measure working memory, and Stroop, used to measure inhibition. The group who did not habituate showed a tendency to perform worse on 3-back, before and during exposure. Inability to habituate may be a behavioral expression of poorer working memory capacity, and possibly other vulnerability factors. These factors should be further investigated.  

Place, publisher, year, edition, pages
2016. , 18 p.
Keyword [en]
odors, habituation, working memory, inhibition, n-butanol, n-back, Stroop
Keyword [sv]
lukt, habituering, arbetsminne, inhibering, n-butanol, n-back, Stroop
National Category
Applied Psychology
Identifiers
URN: urn:nbn:se:umu:diva-122080OAI: oai:DiVA.org:umu-122080DiVA: diva2:937154
Subject / course
Examensarbete i psykologi
Educational program
Study Programme for University Diploma in Psychology
Supervisors
Examiners
Available from: 2016-06-15 Created: 2016-06-15 Last updated: 2016-06-15Bibliographically approved

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