Search for dissertations about: "kognition"

Showing result 1 - 5 of 55 swedish dissertations containing the word kognition.

  1. 1. Cognition in Hearing Aid Users : Memory for Everyday Speech

    Author : Hoi Ning Elaine Ng; Jerker Rönnberg; Mary Rudner; Thomas Lunner; Kevin Munro; Linköpings universitet; []
    Keywords : Hearing aid; working memory; free recall; noise reduction; speech recognition; Hörapparat; arbetsminne; återgivning; brusreducering; taluppfattning;

    Abstract : The thesis investigated the importance of cognition for speech understanding in experienced and new hearing aid users. The aims were 1) to develop a cognitive test (Sentence-final Word Identification and Recall, or SWIR test) to measure the effects of a noise reduction algorithm on processing of highly intelligible speech (everyday sentences); 2) to investigate, using the SWIR test, whether hearing aid signal processing would affect memory for heard speech in experienced hearing aid users; 3) to test whether the effects of signal processing on the ability to recall speech would interact with background noise and individual differences in working memory capacity; 4) to explore the potential clinical application of the SWIR test; and 5) to examine the relationship between cognition and speech recognition in noise in new users over the first six months of hearing aid use. READ MORE

  2. 2. Cognition in interned adolescents : aspects of executive functions and training

    Author : Olov Nordvall; Bert Jonsson; Anna Stigsdotter Neely; Anne H. Berman; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; interned youth; adolescence; antisocial behavior; executive functions; cognitive training; transfer; performance-based measures; self-assessment; impulsivity; Psychology; psykologi;

    Abstract : This doctoral thesis examines adolescents with a history of antisocial behavior with a focus on investigating executive functioning, impulsivity and experiences of everyday executive problems. The thesis further investigates the associations between self-reported and performance-based measures. READ MORE

  3. 3. Children with Cochlear Implants : Cognition and Reading Ability

    Author : Malin Wass; Björn Lyxell; Birgitta Sahlén; Birgitta Larsby; Anita McAllister; Linköpings universitet; []
    Keywords : Cochlear implants; children; working memory; phonological skills; lexical access; reading ability; Cochleaimplantat; barn; arbetsminne; fonologiska färdigheter; lexikal aktivering; läsförmåga.; MEDICINE; MEDICIN;

    Abstract : The present thesis investigated cognitive ability in children with severe to profound hearing impairment who have received cochlear implants (CIs). The auditory stimulation from a cochlear implant early in life influences most cognitive functions as a consequence of the plasticity of the brain in the young child. READ MORE

  4. 4. Fats in Mind : Effects of Omega-3 Fatty Acids on Cognition and Behaviour in Childhood

    Author : Ulrika Birberg Thornberg; Thomas Karlsson; Magnus Lindgren; Linköpings universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Cognition; Omega-3 Fatty Acids; Children; ADHD; Executive Functions; kognition; omega-3 fettsyror; barn; ADHD; exekutiva funktioner; Psychology; Psykologi;

    Abstract : The aim of this thesis was to examine possible effects of omega-3 fatty acids on children’s cognition and behavior. Longitudinal as well as cross-sectional comparisons were made among children with typical development and children with ADHD /at risk developing ADHD. READ MORE

  5. 5. Aerobic fitness and healthy brain aging : cognition, brain structure, and dopamine

    Author : Lars Jonasson; Carl-Johan Boraxbekk; Katrine Riklund; Emrah Düzel; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICAL AND HEALTH SCIENCES; Aerobic exercise; VO2; working memory; executive function; freesurfer; striatum; dopamine; D2-receptors; [11C]raclopride;

    Abstract : Background: Performing aerobic exercise and maintaining high levels of aerobic fitness may have positive effects on both brain structure and function in older adults. Despite decades of research however, there is still a rather poor understanding of the neurocognitive mechanisms explaining the positive effects of aerobic exercise on cognition. READ MORE