Sökning: "pupil size."

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden pupil size..

  1. 1. Respiratory influences on pupil size dynamics and visual recognition memory

    Författare :Martin Schaefer; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Breathing, a fundamental rhythm of life, has traditionally been associated with the exchange of oxygen and carbon dioxide. However, recent research in both animal models and humans has unveiled additional roles of respiration in modulating cortical neuronal activity, influencing sensory, motor, emotional, and cognitive processes. LÄS MER

  3. 2. Lärares och elevers interaktion i klassrummet : Betydelse av kön, ålder, ämne och klasstorlek samt lärares uppfattningar om interaktionen

    Författare :Charlotta Einarsson; Kjell Granström; Håkan Alm; Linköpings universitet; []
    Nyckelord :Classroom interaction; gender differences; class size; teachers conceptions; teacher behaviour; pupil behaviour; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The aim of this thesis is to investigate classroom interaction. Of central importance are the following questions; Does gender of pupil, gender of teacher, age of pupils, subject taught and class size have any importance for the classroom interaction? What conceptions of interaction with pupils do teachers have?Data have been collected by two different methods – structured classroom observations and focus groups. LÄS MER

  4. 3. Cataract from ultraviolet radiation

    Författare :Stefan Löfgren; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cataract; ultraviolet radiation; lens; rat; transmittance; pigment; age; pupil size.;

    Sammanfattning : Cataract is the major cause of low vision and blindness in the world. Epidemiological and experimental studies link cataract to (solar) ultraviolet radiation (UVR) exposure. Current safety limits of UVR exposure are based on animal experiments, but many factors are less well known in UVR cataractogenesis. LÄS MER

  5. 4. Attention and Learning through the Eyes of the Emotional Brain

    Författare :Manuel Oliva; Kognitionsvetenskap; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : The present thesis consists of four articles that address cognitive-emotional interactions as measured through eye movements and pupil dilation.Social facilitation-inhibition is an effect that describes changes in performance (enhancement or impairment) when individuals complete tasks in social presence compared to when they perform the same tasks in solitary conditions. LÄS MER

  7. 5. Congenital ectopia lentis : diagnosis and treatment

    Författare :Tiina Rysä Konradsen; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Congenital ectopia lentis (EL) is an ocular condition, which typically causes a high grade of refractive errors, mainly myopia and astigmatism. These might be difficult to compensate for, especially in children, who might develop ametropic amblyopia. LÄS MER