Search for dissertations about: "Retinal ganglion cells"

Showing result 1 - 5 of 11 swedish dissertations containing the words Retinal ganglion cells.

  1. 1. Neurotrophic Factor Receptors in the Normal and Injured Visual System : Focus on Retinal Ganglion Cells

    Author : Niclas Lindqvist; Finn Hallböök; Anders Kvanta; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; cell survival; gene expression; neurotrophic factor; receptor; retina; visual system; Neurovetenskap; Neurology; Neurologi; Developmental Neurosciences; Medicinsk utvecklings- och neurobiologi;

    Abstract : The focus of this thesis is the life and death of adult retinal ganglion cells (RGCs). RGCs are neurons that convey visual information from the retina to higher centers in the brain. READ MORE

  2. 2. Modulation of the Progenitor Cell and Homeostatic Capacities of Müller Glia Cells in Retina : Focus on α2-Adrenergic and Endothelin Receptor Signaling Systems

    Author : Mohammad Harun-Or-Rashid; Finn Hallböök; Per Ekström; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alpha2-adrenergic receptor; Brimonidine; Brn3a; Dedifferentiation; Endothelin; EGFR; ERK1 2; Neuroprotection; NMDA; MIO-M1 human Müller cell; Müller cells; Retina; Retinal ganglion cells; Src-kinase; Transactivation.; Medical Science; Medicinsk vetenskap;

    Abstract : Müller cells are major glial cells in the retina and have a broad range of functions that are vital for the retinal neurons. During retinal injury gliotic response either leads to Müller cell dedifferentiation and formation of a retinal progenitor or to maintenance of mature Müller cell functions. READ MORE

  3. 3. Generation of Retinal Neurons : Focus on the Proliferation and Differentiation of the Horizontal Cells and their Subtypes

    Author : Henrik Boije; Finn Hallböök; Paul Layer; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; FoxN4; Ptf1a; PH3; G2-phase; Cell cycle arrest; Differentiation; Fate; Commitment; Neurogenesis; Follistatin; Neuroscience; Neurovetenskap; Neuroscience; Neurovetenskap;

    Abstract : We have used the chicken retina as a model for investigating cell cycle regulation and cell fate commitment during central nervous system development. This thesis focuses on the characterization of and commitment to the horizontal cell fate in the retina. READ MORE

  4. 4. Neural limits of visual resolution

    Author : Zoran Popovic; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cell separation; cortical magnification; detection; estimated receptive field; high-pass filtered optotypes; nyquist limit; psychophysics; resolution; ganglion cells;

    Abstract : Aims: The aim of this thesis was to formulate a model of retinal neural circuitry in humans based on morphological estimates of retinal cone and ganglion cell populations, to compare results based on this model to psychophysical measurements of visual resolution and identify the retinal neural factors that limit visual resolution.Materials & Methods: Total displacement of central ganglion cells from foveal cones was obtained by estimating the length of fibers of Henle in four human retinas along the nasal or vertical hemi-meridians. READ MORE

  5. 5. Spatial Vision in Birds: Anatomical investigation of spatial resolving power

    Author : Mindaugas Mitkus; Funktionell zoologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Raptors; Seabirds; Parrots; Birds; Double cones; Development; Retinal ganglion cells; Visual spatial resolution; Visual ecology; Vision;

    Abstract : Avian eyes are big both in relative and absolute terms, thus the importance of vision to birds is obvious. Even though the general eye plan is rather conservative throughout the group, there is a great variation in visual capabilities. READ MORE