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- Brodd, Katarina Strand, et al.
(author)
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Development of smooth pursuit eye movements in very preterm infants : 1. General aspects
- 2011
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In: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 100:7, s. 983-991
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Journal article (peer-reviewed)abstract
- Aim: To investigate early oculo-motor development in a population-based cohort of very preterm infants.Methods: Early oculo-motor development was prospectively studied by measuring smooth pursuit eye movements at 2 and 4 months corrected age in a population of very preterm infants born in Uppsala County 2004–2007. Eighty-one preterm infants were studied, and 32 healthy term infants constituted the control group.Results: The study group consisted of infants with a mean gestational age of28 + 5 weeks. At 2 and 4 months corrected age, infants born very preterm showed lower gain (p < 0.001) and proportion of smooth pursuit eyemovements (p < 0.001) compared to the control group. The boys showed higher gain of smooth pursuit eye movements at both 2 and 4 months corrected age, compared to girls.Conclusions: Oculo-motor development measured by smooth pursuit eye movements is delayed in very preterm infants at 2 and 4 months corrected age. This might be a risk factor or early indicator of later perceptual and behavioural impairment.
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| 2. |
- Göransson, Eva, et al.
(author)
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Gamla Riksarkivet
- 1993
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Reports (pop. science, debate, etc.)abstract
- Under läsåret 1992-93 studerades Gamla Riksarkivet i Stockholm, ett unikt och välbevarat exempel på det sena 1800-talets byggnadstekniska utveckling och materialindustri. Bakom dess resliga tegelfasader döljer sig magnfika orörda interiörer i entréhall, trapphus och forskarsalar samt våning efter våning av magasinrum byggda av gjutjärn och stål. Byggnaden har utnyttjas osm depå sedan 1968 då det nya Riksarkivet i Marieberg invigdes, men står sedan 1995 utan användning. Den mycket speciella tekniska och funktionella uppbyggnaden ställer särskilda krav på en framtida användning. Ägaren Statens fastighetsverk söker nu en hyresgäst som kan tillvarata byggnadens historiska värde och fylla huset med levande verksamhet. Denna rapport bygger på det material som tagits fram i samband med studierna, såsom äldre beskrivningar, ritningar, fotografier samt noggranna uppmätningar av byggnaden. Gamla Riksarkivet har dokumenterats och analyserats ur historisk, teknisk och funktionell synpunkt. Arbetet har tidigare presenterats i en utställning om byggnaden med ett förslag till framtida användning som ett humanistiskt arkivcentrum.Genom publicering av denna rapport vill vi förmedla vår kunskap om byggnaden och dess unika kvalitéer.Vi vill tacka alla som gett sitt stöd och bidrag i arbetet, bl.a. riksarkivarie Erik Norberg, akrivredaktör Kerstin Abukhanfusa och vaktmästare Magdalena Salomonsson, samtliga vid Riksarkivet, samt fastighetsförvaltare Hadi Lotfi vid Statens fastighetsver.Fotograferna Kurt Eriksson och Bengt Lundberg har bidragits med material förutom de fotografier som tagits av arbetsgruppen.
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| 3. |
- Strand Brodd, Katarina, 1956-
(author)
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Delayed Development of Visuomotor Capacity in Very Preterm Infants
- 2011
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Doctoral thesis (other academic/artistic)abstract
- To coordinate visual perception and motor control in daily life where we are constantly surrounded by motion, we are dependent on normal visuomotor capacity. One essential prerequisite for normal visuomotor capacity is smooth pursuit eye movements (SP). Infants born very preterm (VPT = born <32 gestational weeks) are at high risk of developing disabilities in higher brain functions i.e. perception, cognition, concentration and coordination. In this thesis visuomotor capacity was investigated in a cohort of VPT infants (n = 113) and compared to control groups of full term (FT) infants. Levels of SP were measured at 2 and 4 months’ corrected age (CA). At 8 months’ CA reaching capacity toward a moving object was evaluated as this represents an executive activity guided by vision that develops at an early age. Lower levels of SP were found in the VPT infants compared to FT controls. The VPT boys showed higher levels of SP compared to the VPT girls. In VPT infants without major neonatal morbidities lower levels of SP was found compared to the FT controls. No difference in total capacity of gaze tracking was found, although the VPT infants lagged the object more at 4 months’ CA and used more saccades at 2 months’ CA. With age the VPT infants’ SP levels increased, but with a wider dispersion compared to the FT controls, and the levels of SP at 4 months’ CA corresponded to the levels of the FT infants at 2 months. A number of perinatal risk factors were found to be negatively associated to lower levels of SP, and this effect was more pronounced in VPT infants with multiple risk factors,. When evaluating the capacity to reach a moving object at 8 months’ CA, the VPT infants showed significantly more bimanual reach and more curved reaching paths to catch the object as compared to the FT control group. In conclusion, a delayed visuomotor capacity was found in VPT infants compared to FT control infants at 2, 4 and 8 months’ CA. Some VPT infants with perinatal risk factors did not develop in levels of SP between 2 and 4 months’ CA.
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