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Dimberg, Kenth
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Publications (4 of 4) Show all publications
Mixter, S., Mathiassen, S. E., Lindfors, P., Dimberg, K., Jahncke, H., Lyskov, E. & Hallman, D. (2019). Stress-related responses to alternations between repetitive physical work and cognitive tasks of different difficulties. Applied Ergonomics
Open this publication in new window or tab >>Stress-related responses to alternations between repetitive physical work and cognitive tasks of different difficulties
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2019 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126Article in journal (Refereed) Submitted
Abstract [en]

This experimental study aimed to determine the extent to which a repetitive physical task alternatingwith a cognitive task (CT) influences stress responses and whether the CT difficulty is important. Fifteen women performed three sessions of 10 consecutive work bouts, each including a seven-minutere petitive physical task and a three-minute CT at either of three difficulty levels. Stress-related responses were assessed using heart rate variability, blood pressure, salivary alpha-amylase, salivary cortisol, perceived stress and cognitive performance.The alternating work did not result in any marked increase in perceived stress or changes in stressresponses. CT difficulty did not influence stress responses (all p>0.05), apart from alpha-amylase which was higher during the easiest CT (F= 5.34, p= 0.02). Thus, introducing cognitive work bouts into repetitive physical work did not result in increased levels of stress, suggesting this approach to be viable in job rotation.

Keywords
recovery, stress, mental task
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-30459 (URN)
Funder
AFA Insurance, 120223
Available from: 2019-08-06 Created: 2019-08-06 Last updated: 2019-08-26Bibliographically approved
Jahncke, H., Hygge, S., Halin, N., Green, A. M. & Dimberg, K. (2011). Open-plan office noise: Cognitive performance and restoration. Journal of Environmental Psychology, 31(4), 373-382
Open this publication in new window or tab >>Open-plan office noise: Cognitive performance and restoration
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2011 (English)In: Journal of Environmental Psychology, ISSN 0272-4944, E-ISSN 1522-9610, Vol. 31, no 4, p. 373-382Article in journal (Refereed) Published
Place, publisher, year, edition, pages
Elsevier, 2011
Keywords
working memory; emotion; physiology; open-plan office; stress; biology
National Category
Psychology Biological Sciences
Identifiers
urn:nbn:se:hig:diva-9850 (URN)10.1016/j.jenvp.2011.07.002 (DOI)000296547100012 ()2-s2.0-80053614655 (Scopus ID)
Available from: 2011-08-16 Created: 2011-08-15 Last updated: 2018-12-03Bibliographically approved
Jahncke, H., Hygge, S., Halin, N., Green, A. M. & Dimberg, K. (2010). An experiment on noise and cognition in a simulated open-plan office. In: 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010: . Paper presented at INTER-NOISE 2010, the 39th International Congress and Exposition on Noise Control Engineering, 13-16 June, 2010, Lisbon, Portugal (pp. 2827-2836). Lisbon, Portugal: Portuguese acoustical society, 4
Open this publication in new window or tab >>An experiment on noise and cognition in a simulated open-plan office
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2010 (English)In: 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010, Lisbon, Portugal: Portuguese acoustical society , 2010, Vol. 4, p. 2827-2836Conference paper, Published paper (Refereed)
Abstract [en]

The aim of the present study was to investigate cognitive, emotional, and physiological effects of two background noise conditions (high noise: 51 LAeq and low noise: 39 LAeq) during work in a simulated open-plan office, followed by four restoration conditions (river movie with sound, only river sound, silence, and office noise) after the work period. Students (N = 47) went through one practice session and two experimental sessions, one each with the low and high noise conditions. In each experimental session they worked for two hours with tasks involving basic working memory processes. We also took physiological measures of stress (cortisol and catecholamine) and self-reports of mood and fatigue. The results showed that the participants remembered fewer words, rated themselves as more tired and less motivated in high noise compared to low noise. The participants showed high levels of cortisol when they arrived to the experimental session and they had a significant (p <.001) decline in both noise conditions after two hours of work. An identical decline was shown in the norepinephrine levels (p < 0.001). The restoration phase also indicated that the sound conditions may promote different restorative experiences. To conclude, the present study showed that noise level can be of importance for working memory performance and subjective feelings of tiredness and motivation in an open-plan office and that varying sound conditions may promote different restorative experiences.

Place, publisher, year, edition, pages
Lisbon, Portugal: Portuguese acoustical society, 2010
Keywords
noise, open-plan office, restoration, stress, working memory
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-7380 (URN)2-s2.0-84868644897 (Scopus ID)9781617823961 (ISBN)
Conference
INTER-NOISE 2010, the 39th International Congress and Exposition on Noise Control Engineering, 13-16 June, 2010, Lisbon, Portugal
Available from: 2010-08-24 Created: 2010-08-24 Last updated: 2018-12-03Bibliographically approved
Bjerselius, R., Lundstedt Enkel, K., Olsén, H., Mayer, I. & Dimberg, K. (2001). Male goldfish reproductive and physiology are severely affected by exogenous exposure to 17b-estradiol. Aquatic Toxicology, 53(2), 139-152
Open this publication in new window or tab >>Male goldfish reproductive and physiology are severely affected by exogenous exposure to 17b-estradiol
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2001 (English)In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 53, no 2, p. 139-152Article in journal (Refereed) Published
Abstract [en]

Mature male goldfish were exposed to different concentrations of the natural hormone 17beta-estradiol (E2). Two methods of exposure were employed, via ingestion at 0, 1, 10 and 100 microg/g food and via the water at 0, 1 and 10 microg/l. The fish were exposed for 24-28 days during the spawning period. The males were then paired with an artificially induced, spawning female and their sexual behaviour was observed during a 15 min period. The physiological status of the fish was also examined with respect to GSI, presence of milt and spawning tubercles and the blood plasma concentration of E2. Despite the relatively short exposure period, exposure to physiological levels of E2 was shown to severely affect the male goldfish reproductive behaviour and physiology. In conclusion, the results from this study and the ability to interpret the effects on this well-studied species, show that the effects of E2, and possibly other estrogenic EDCs, have severe effects at several vital levels of male goldfish reproduction. The results also suggests that the hormone E2 can act as an endocrine disrupting chemical (EDC) in the environment.

PMID: 11311390 [PubMed - indexed for MEDLINE]

National Category
Natural Sciences
Identifiers
urn:nbn:se:hig:diva-1186 (URN)10.1016/S0166-445X(00)00160-0 (DOI)000169136100006 ()11311390 (PubMedID)
Available from: 2008-01-14 Created: 2008-01-14 Last updated: 2018-03-13Bibliographically approved
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