Sökning: "DLPFC"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet DLPFC.

  1. 1. Variations in Functional Lateralization

    Författare :Peter E Wendt; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; posterior association cortex; prefrontal; DLPFC; regional cerebral blood flow; normal subjects; lateralization; asymmetry; performance; creativity; Neurology; neuropsychology; neurophysiology; cognitive; ethanol; activation; visual stimulation; functional; verbal; divergent; spatial; Neurologi; neurofysiologi; neuropsykologi;

    Sammanfattning : The general aim of this thesis was to study asymmetric activation of the neocortex in normal subjects, using the rCBF technique and different cognitive tasks. The aim was also to study individual and group variations of asymmetric activation, as well as factors pertaining to these variations. The thesis is based on four investigations. LÄS MER

  3. 2. Ovarian Steroid Hormones, Emotion Processing and Mood

    Författare :Malin Gingnell; Inger Sundström-Poromaa; Mats Fredrikson; Johan Wikström; Larry Cahill; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; premenstrual dysphoric disorder; menstrual cycle; combined oral contraceptives; estrogen; estradiol; progesterone; ethinyl-estradiol; levonorgestrel; randomized clinical trial; placebo; fMRI; amygdala; ACC; insula; dlPFC; mPFC; IFG; MFG; Medicinsk vetenskap; Medical Science; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : It is known that some psychiatric disorders may deteriorate in relation to the menstrual cycle. However, in some conditions, such as premenstrual dysphoric disorder (PMDD), symptomatology is triggered mainly by the variations in ovarian steroid hormones. LÄS MER

  4. 3. Measuring the tactile sense: Cortical mechanisms and clinical applications of tactile direction discrimination

    Författare :Linda Lundblad; Göteborgs universitet; []
    Nyckelord :AIC; diabetic neuropathy; DLPFC; fMRI; hairy skin; psychophysics; QST testing; somatosensory cortex; tactile direction discrimination;

    Sammanfattning : Most of the studies aiming to investigate the human tactile sense are done on the glabrous skin. Still, there is a need for a quantitative method for evaluating nervous function of the hairy skin. LÄS MER

  5. 4. Neural Mechanisms Determining Visuospatial Working Memory Tasks : Biophysical Modeling, Functional MRI and EEG

    Författare :Fredrik Edin; Jesper Tegnér; Klaas Stephan; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datalogi;

    Sammanfattning : Visuospatial working memory (vsWM) is the ability to temporarily retain goal-relevant visuospatial information in memory. It is a key cognitive function related to general intelligence, and it improves throughout childhood and through WM training. LÄS MER

  7. 5. Determinants of age-related brain iron accumulation and links to neurocognitive functions

    Författare :Jonatan Gustavsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Iron is crucial for development and normal functioning of the brain. With increasing age, it accumulates in the cells and can cause irreparable damage, affecting both the structure and function of the brain. Despite these findings, the factors which influence iron accumulates and the longitudinal effects of iron are still poorly understood. LÄS MER