Sökning: "fMRI"

Visar resultat 1 - 5 av 114 avhandlingar innehållade ordet fMRI.

  1. 1. fMRI for mapping the plastic somatotopy of primary somatosensory cortex - Development and clinical applications

    Detta är en avhandling från Medical Radiation Physics, Lund University

    Författare :Andreas Weibull; Lunds universitet.; Lund University.; [2009]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; smoothing; physiological noise; spatial resolution; primary somatosensory cortex; cortical reorganisation; brain plasticity; fMRI; partial volume effects;

    Sammanfattning : Functional magnetic resonance imaging (fMRI) is a widely used tool for studying brain function in vivo. The technique is based on acquiring brain images sensitive to the physiological response following neural activation, and hence, allows brain activity to be examined and documented. LÄS MER

  2. 2. Advanced clinical MRI for better outcome in epilepsy surgery. Focusing on fMRI and prediction of verbal memory decline

    Detta är en avhandling från Neurology, Lund

    Författare :Maria Strandberg; Lunds universitet.; Lund University.; [2014]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; 3T MRI; surface coils; epilepsy surgery; fMRI; TLE; lateralization index; MTL; verbal encoding;

    Sammanfattning : Abstract Aim: The aim of the thesis was to evaluate the use of advanced MRI technology to improve results of epilepsy surgery, with focus on language and memory functions. Methods: In paper I, 25 patients with drug-resistant epilepsy were retrospectively included in the study for having been referred to high resolution 3T MRI with and without surface coils. LÄS MER

  3. 3. Human brains and virtual realities Computer-generated presence in theory and practice

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Daniel Sjölie; Umeå universitet.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Human brain function; virtual reality; presence; cognitive neuroscience; human-computer interaction; brain imaging; fMRI; BCI; neural correlates; HCI theory; reality-based interaction.;

    Sammanfattning : A combined view of the human brain and computer-generated virtual realities is motivated by recent developments in cognitive neuroscience and human-computer interaction (HCI). The emergence of new theories of human brain function, together with an increasing use of realistic human-computer interaction, give reason to believe that a better understanding of the relationship between human brains and virtual realities is both possible and valuable. LÄS MER

  4. 4. Machine learning for identification of brain activity patterns with applications in gentle touch processing

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Malin Björnsdotter Åberg; Göteborgs universitet.; Gothenburg University.; [2009]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Somatosensory; Machine learning; Pattern recognition; fMRI; Support vector machines; Neuroscience; Brain; BOLD; Signal processing; Artificial intelligence; Touch; Human; Unmyelinated; Sensory; Affective;

    Sammanfattning : Since the first mention of artificial intelligence in the 1950s, the field of machine learning has provided increasingly appealing tools for recognition of otherwise unintelligible pattern representations in complex data structures. Human brain activity, acquired using functional magnetic resonance imaging (fMRI), is a prime example of such complex data where the utility of pattern recognition has been demonstrated in a wide range of studies recently (Haynes et al. LÄS MER

  5. 5. On Mathematical Reasoning being told or finding out

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Mathias Norqvist; Umeå universitet.; [2016]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mathematics education; creative reasoning; reasoning; cognitive proficiency; fMRI; didactics of mathematics; matematikdidaktik;

    Sammanfattning : School-mathematics has been shown to mainly comprise rote-learning of procedures where the considerations of intrinsic mathematical properties are scarce. At the same time theories and syllabi emphasize competencies like problem solving and reasoning. LÄS MER