Search for dissertations about: "fear signaling"

Found 5 swedish dissertations containing the words fear signaling.

  2. 1. Investigations of neural attractor dynamics in human visual awareness

    Author : David N. Silverstein; Pawel Herman; Martin Ingvar; Karl Friston; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; attractor dynamics; visual awareness; visual perception; visual attention; attentional blink; backward masking; gliomas; brain tumor; white matter; cell assemblies; neocortical model; threat response; fear signaling; amygdala; Biological Physics; Biologisk fysik; Computer Science; Datalogi; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Abstract : What we see, how we see it and what emotions may arise from stimuli has long been studied by philosophers, psychologists, medical doctors and neuroscientists. This thesis work investigates a particular view on the possible dynamics, utilizing computational models of spiking neural attractor networks. READ MORE

  4. 2. Immunological changes in human blood and skeletal muscle in response to physical exercise

    Author : Christer Malm; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Eccentric exercise; soccer; football; adaptation; immune system; muscle; inflammation; damage; leukocytes; growth factors; cytokines; adhesion; signaling; hormones.;

    Abstract : Physical exercise is essential for maintaining normal function of skeletal muscle. Muscle tissue also has a remarkable capacity for adaptation to changes in physical demand. In fact, without stimulation from physical activity, muscle tissue will atrophy. READ MORE

  5. 3. On neuroinflammation in psychotic disorders

    Author : Carl Sellgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Neuroinflammation has been implicated in several psychiatric conditions. Based on experimental studies, the glia-derived tryptophan metabolite kynurenic acid (KYNA) may be especially relevant for positive psychotic symptoms and impaired executive functioning. READ MORE

  6. 4. Organization of brain circuits that control motivated behaviors

    Author : Ourania Tzortzi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Eudemonia (Greek: εὐδαιμονία) is an anthropocentric term describing the absolute well-being in the Aristotelian ethics, along with the terms “arête” (virtue) and “phronesis” (wisdom from an ethical and practical point of view). Arête and virtue will guide ones decisions to promote future eudemonia and ultimately survival. READ MORE

  7. 5. Serotonin in emotional memory processes : neuropharmacological studies with emphasis on depression

    Author : Therese M Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Cognitive dysfunctions are common in neuropsychiatric disorders including Major Depressive Disorder, but are difficult to normalize by antidepressant therapies and contribute to reduced functional improvement. Cognitive impairments include alterations of emotional memory processes that are early targeted by antidepressant therapies, including Selective Serotonin Reuptake Inhibitors (SSRIs). READ MORE