Search for dissertations about: "PET behavior"

Showing result 1 - 5 of 23 swedish dissertations containing the words PET behavior.

  2. 1. Imaging serotonin and dopamine transporters in social anxiety disorder : Characterization, treatment and expectancy effects

    Author : Olof Hjorth; Tomas Furmark; Andreas Frick; Eduard Maron; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; PET; serotonin; dopamine; placebo; SSRI; CBT; MRI; Psychology; Psykologi; Psychiatry; Psykiatri; Radiology; Radiologi;

    Abstract : The monoamines serotonin and dopamine are likely to be involved in the pathophysiology of social anxiety and other affective disorders, but their respective contributions and putative interactions in the causes and cures of these disorders are still not well understood. It is also largely unknown if and how expectations of treatment success affect brain neurochemistry and neural activations, and if expectations interact with antidepressants like selective serotonin reuptake inhibitors (SSRIs). READ MORE

  4. 2. Verification of high energy photon therapy based on PET/CT imaging of photonuclear reactions

    Author : Sara Janek Strååt; Anders Brahme; Cathrine Jonsson; Iuliana Dasu; Sibylle Ziegler; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Photonuclear reactions; PET CT treatment verification; High-energy photon therapy; Medical Radiation Physics; medicinsk strålningsfysik;

    Abstract : For classical and intensity modulated radiation therapy of deep-seated tumors, high-energy photons are the optimal radiation modality from an integral dose point of view. By using narrow scanned beams the treatment outcome can be improved substantially by delivering biologically optimized intensity modulated distributions often with sharp dose gradients. READ MORE

  5. 3. Dopamine and the affective-cognitive gradient in the human striatum studied with multimodal brain imaging

    Author : Filip Grill; Anna Rieckmann; Lars Nyberg; Alison Adcock; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; striatum; incentive; motor; associative; reinforcement learning; reward prediction error; positron emission tomography; functional magnetic resonance imaging; PET MR; cognitive modelling;

    Abstract : Both dopamine and the dopamine rich brain area, striatum, have been linked to behaviors related to incentives, motor action, and associative processing. Most of the cortex sends projections to the striatum, these connections have been described as a gradient organization representing a repertoire of functional behaviors. READ MORE

  6. 4. PET studies of the dopamine system in relation to cognitive functions

    Author : Nina Erixon-Lindroth; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : The human brain is intricately designed to execute cognitive functions such as perception, attention, memory and learning. Deficits in cognitive functions accompany major psychiatric disorders such as schizophrenia, attention deficit hyperactivity disorder and Parkinson s disease. READ MORE

  7. 5. A study of immune dynamics in experimental arthritis using CRISPR and PET techniques

    Author : Yunbing Shen; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Background: Rheumatoid arthritis (RA) is an autoimmune disease characterized by joint inflammation associated with CD4 T cell dysfunction. The disease has no cure; thus, early diagnosis and interventions are crucial. DNMT3A is one of the most somatically mutated genes in the hematopoietic system of elderly people and RA patients. READ MORE