Sökning: "Visual Electrophysiology"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Visual Electrophysiology.

  1. 1. Visual filtering in box jellyfish: A simple system

    Författare :Megan O'Connor; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tripedalia cystophora; box jellyfish; Cnidaria; Chiropsella bronzie; visual filtering; visual systems; microspectrophotometry; vision; eyes;

    Sammanfattning : Unlike most jellyfish, box jellyfish (cubomedusae) are highly visually orientated. They are agile swimmers and use visual information to avoid obstacles and orientate themselves. LÄS MER

  2. 2. Signal identification for visual electrophysiological recordings. A comparison of signal analysis techniques and their application to clinical electrophysiology of vision

    Detta är en avhandling från Göteborg : University of Gothenburg

    Författare :Thomas Wright; Göteborgs universitet.; Gothenburg University.; [2012]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Visual Electrophysiology; Signal detection; Signal-to-Noise Ratio; multivariate analysis; spatial-temporal partial least-squares;

    Sammanfattning : Aims: The aim of this thesis was to investigate the use of objective methods for the analysis of visual electrophysiological recordings. Specifically can signal identification algorithms identify electrophysiological signals and can they be applied to improve clinical testing and analysis? Methods: Automated signal identification algorithms were applied to multifocal electroretinogram (mfERG) and visual evoked potential (VEP) recordings. LÄS MER

  3. 3. Retinal Vein Occlusion A clinical study of electrophysiology, certain prognostic factors and treatment

    Detta är en avhandling från Lund University (Media-Tryck)

    Författare :Charlotte Lindberg; [2006]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ophtalmology; Oftalmologi; multifocal electroretinography vitrectomy; electroretinography; factor V Leiden; retinal vein occlusion; prognostic factors;

    Sammanfattning : The influence of the factor V Leiden mutation on the development of neovascular complications in central retinal vein occlusion was studied. The presence of the mutation was found to enhance the risk of developing neovascular complications almost threefold compared to in patients without the mutation. LÄS MER

  4. 4. Evaluation of the visual pathway with ERG, mfERG and mfVEP in inherited eye disorders

    Detta är en avhandling från Department of Ophthalmology, Lund University

    Författare :Lotta Gränse; [2006]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; multifocal ERG; Full-field ERG; multifocal VEP; Bothnia Dystrophy; Retinitis pigmentosa; Dominant optic atrophy; Leber`s hereditary optic neuropathy; Oftalmologi; Ophtalmology;

    Sammanfattning : This thesis will describe the clinical phenotypes, with emphasis on electrophysiology, in patients with different hereditary eye diseases and to further evaluate and modify the mfVEP technique for clinical use. Bothnia Dystrophy is a tapetoretinal disorder with a mutation in the RLBP1 gene. LÄS MER

  5. 5. Structural and functional alterations in the rat retina after long term exposure to two n-hexane metabolites

    Detta är en avhandling från Stockholm : Karolinska Institutet, Department of Physiology and Pharmacology

    Författare :Birgitta Bäckström; Karolinska Institutet.; Karolinska Institutet.; [1999]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; n-Hexane; 2; 5-hexanedione; 2; 5-hexanediol; immunohistochemical techniques; neurotoxicity; retinopathy; photoreceptors; light energy; electrophysiology; pupil;

    Sammanfattning : Exposure to the two n-hexane metabolites, 2,5-hexanedione (2,5-HD) and 2,5-hexanediol (2,5-HDol) causes swellings in the distal part of long nerve axons. This phenomenon, centralperipheral distal axonopathy, was studied using an indirect immuno-peroxidase method with monoclonal antibodies to neurofilament protein. LÄS MER