Search for dissertations about: "Rat neocortex"

Showing result 1 - 5 of 8 swedish dissertations containing the words Rat neocortex.

  1. 1. An Attractor Memory Model of Neocortex

    University dissertation from Stockholm : KTH

    Author : Christopher Johansson; KTH.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Attractor Neural Networks; Cerebral Cortex; Neocortex; Brain Like Computing; Hypercolumns; Minicolumns; BCPNN; Parallel Computers; Autoassociative Memory; TECHNOLOGY Information technology Computer science Computer science; TEKNIKVETENSKAP Informationsteknik Datavetenskap Datalogi;

    Abstract : This thesis presents an abstract model of the mammalian neocortex. The model was constructed by taking a top-down view on the cortex, where it is assumed that cortex to a first approximation works as a system with attractor dynamics. READ MORE

  2. 2. Neurogenesis and gliogenesis after focal brain ischemia. Modulation by enriched environment and exercise

    University dissertation from Stockholm : KTH

    Author : Mila Komitova; Göteborgs universitet.; Gothenburg University.; [2005]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; astrocyte; hippocampus; neural progenitor cells; neural stem cells; neurogenesis; neurotrophins; rat; regeneration; rehabilitation; stroke;

    Abstract : New neurons are formed from dividing neural stem cells in restricted areas in the adult mammalian brain: the dentate gyrus of the hippocampal formation (DG) and the forebrain subventricular zone (SVZ). New glia also form constitutively and seem to be important for neuronal function. READ MORE

  3. 3. The role of the serotonergic system and the effects of antidepressants during brain development examined using in vivo PET imaging and in vitro receptor binding

    University dissertation from Stockholm : Karolinska Institutet, Dept of Clinical Neuroscience

    Author : Stal Saurav Shrestha; Karolinska Institutet.; Karolinska Institutet.; [2014]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Serotonin (5-HT) and the serotonergic system, which includes the serotonin transporter (SERT) and the two G protein-coupled 5-HT1A and 5-HT1B receptors, are implicated in the pathophysiology and treatment of several neuropsychiatric disorders including major depressive disorder (MDD) and anxiety. Two classes of antidepressants—selective serotonin reuptake inhibitors (SSRIs), which block SERT, and tricyclic antidepressants (TCAs), which block several monoamine transporters—alter 5-HT levels and modulate the serotonergic system. READ MORE

  4. 4. Development of positron emission tomography radioligands for the dopaminergic and serotonergic neurotransmission systems

    University dissertation from Stockholm : Karolinska Institutet, Department of Clinical Neuroscience

    Author : Camilla Lundkvist; Karolinska Institutet.; Karolinska Institutet.; [1998]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PET; Radioligand; Dopamine transporter; Serotonin transporter; 5-HT1A receptor; 5-HT2A receptor;

    Abstract : The dopaminergic and serotonergic neurotransmission systems are of central interest in relation to several neuropsychiatric disorders. The main objectives were to develop new suitable radioligands for positron emission tomography (PET) examinations of the dopamine transporter (DAT) as well as the serotonin 5-HT1A and 5-HT2A-receptors. READ MORE

  5. 5. Regulation of postnatal neurogenesis and brain angiogenesis by thyroid hormone

    University dissertation from Stockholm : Karolinska Institutet, Department of Clinical Neuroscience

    Author : Jenny Liqun Zhang; Göteborgs universitet.; Gothenburg University.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; thyroid hormone; neurogenesis; angiogenesis; SVZ OB; hippocampus; neural stem cells; endothelial cells; astrocytes;

    Abstract : Thyroid hormone (TH), which is secreted by the thyroid gland, exerts significant effects on the central nervous system (CNS), especially during development, so that delayed treatment of perinatal hypothyroidism results in severe cognitive retardation. Continuous postnatal neurogenesis occurs throughout adulthood in the subventricular zone (SVZ) of the lateral ventricle wall and in the subgranular zone (SGZ) of the dentate gyrus (DG) of the hippocampal formation. READ MORE