Search for dissertations about: "cognitive aging"

Showing result 1 - 5 of 102 swedish dissertations containing the words cognitive aging.

  1. 1. The aging brain and changes in cognitive performance : Findings from morphometry and quantitative susceptibility mapping of iron

    Author : Ninni Persson; Håkan Fischser; Kristine B. Walhovd; Stockholms universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; brain aging; volumes; ndividual differences; QSM; cognitive aging; iron; episodic memory; fluid-; crystalized abilities; sex differences; gender differences; psykologi; Psychology;

    Abstract : Brain aging is a heterogeneous phenomenon, and this thesis illustrates how the course of aging can vary within individuals over time and between individuals as a function of age, sex, and genetic variability. We used two contrasts from magnetic resonance imaging (MRI), namely spin-lattice T1-weighted imaging, and quantitative susceptibility mapping (QSM) from gradient-echo images, to picture the aging brain, by means of morphometric measures and brain-iron concentrations. READ MORE

  2. 2. Cognitive training in young and old adults : Transfer, long-term effects, and predictors of gain

    Author : Petra Sandberg; Anna Stigsdotter Neeyl; Michael Rönnlund; Boo Johansson; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Cognitive training; aging; old adults; executive function; life-span; individual differences; episodic memory; inhibition; shifting; updating; cognitive control; strategy training; mnemonics; predictors; Psychology; psykologi;

    Abstract : Aging, also in the absence of pathological conditions, is associated with cognitivedecline, especially in so called fluid abilities, such as episodic memory andexecutive functions. Due to an ongoing demographic shift, a larger part of thepopulation will reach higher ages, and more people will be affected by age-relatedcognitive decline. READ MORE

  3. 3. The aged brain : structural changes and cognitive function

    Author : Hedvig Söderlund; Lena Lyons; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Brain; Cognitive processes; Aging; Åldrandets psykologi; Kognitiva processer; Hjärna;

    Abstract : .... READ MORE

  4. 4. Birth cohort differences in cognitive aging: Secular trends in cognitive functioning and decline over 30 years in three population-based Swedish samples

    Author : Peter Karlsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : Aging; cardiovascular risk factors; cognitive decline; cohort differences; fluid and crystallized abilities; Flynn effect; longitudinal;

    Abstract : The overarching aim of this thesis was to investigate birth cohort differences in level of cognitive functioning and change in later life in three population-based representative samples drawn from the Gerontological and Geriatric Population Studies in Gothenburg (H70), Sweden. We used data from cohorts, born in 1901-02, 1906-07, and 1930, measured at ages 70, 75, and 79 on the same cognitive measures. READ MORE

  5. 5. On Aging, Behavior and the Role of PA28αβ in Protein Homeostasis

    Author : Julia Adelöf; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aggregation prevention; Aging; Animal ethics; Cataract; Exploratory behavior; F2 hybrid mice; Healthy aging; Learning and memory; PA28αβ; Proteasome capacity; Sex comparisons; Water-based behavioral tests;

    Abstract : As life expectancy increases, understanding challenges related to the processes of aging are more relevant than ever. Common age-related diseases progress as consequences of accumulative protein damage and protein aggregates. READ MORE