Search for dissertations about: "amygdala"

Showing result 1 - 5 of 90 swedish dissertations containing the word amygdala.

  1. 1. The Amygdala, Fear and Reconsolidation Neural and Behavioral Effects of Retrieval-Extinction in Fear Conditioning and Spider Phobia

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johannes Björkstrand; Uppsala universitet.; [2017]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Fear conditioning; phobia; memory reconsolidation; retrieval-extinction; exposure therapy; amygdala; fMRI; Psychology; Psykologi;

    Abstract : The amygdala is crucially involved in the acquisition and retention of fear memories. Experimental research on fear conditioning has shown that memory retrieval shortly followed by pharmacological manipulations or extinction, thereby interfering with memory reconsolidation, decreases later fear expression. READ MORE

  2. 2. Positron Emission Tomography (PET) Studies in Anxiety Disorders

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Åsa Michelgård Palmquist; Uppsala universitet.; Uppsala universitet.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Positron emission tomography; PET; amygdala; fear; anxiety; anxiety disorders; specific phobia; social phobia; posttraumatic stress disorder; PTSD; regional cerebral blood flow; rCBF; substance P; SP; neurokinin 1 receptor; NK1; GR205171; STAI-S; MEDICINE Psychiatry; MEDICIN Psykiatri; MEDICINE Morphology; cell biology; pathology Cell biology Neurobiology; MEDICIN Morfologi; cellbiologi; patologi Cellbiologi Neurobiologi; MEDICINE Morphology; cell biology; pathology Cell biology Neuroscience; MEDICIN Morfologi; cellbiologi; patologi Cellbiologi Neurovetenskap; MEDICINE Physiology and pharmacology Physiology Experimental brain research; MEDICIN Fysiologi och farmakologi Fysiologi Experimentell hjärnforskning; MEDICINE Physiology and pharmacology Physiology Molecular neurobiology; MEDICIN Fysiologi och farmakologi Fysiologi Molekylär neurobiologi; MEDICINE Physiology and pharmacology Radiological research Radiation biology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Strålningsbiologi; MEDICINE Physiology and pharmacology Physiology Neurobiology; MEDICIN Fysiologi och farmakologi Fysiologi Neurobiologi; NATURAL SCIENCES Biology Cell and molecular biology Neurobiology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Neurobiologi;

    Abstract : Anxiety disorders are very common and the primary feature is abnormal or inappropriate anxiety. Fear and anxiety is often mediated by the amygdala, a brain structure rich in substance P (SP) and neurokinin 1 (NK1) receptors. READ MORE

  3. 3. On the influence of dopamine-related genetic variation on dopamine-related disorders

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Olle Bergman; Göteborgs universitet.; Gothenburg University.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; neurodevelopment; amygdala; schizophrenia; Parkinson s disease; social anxiety disorder; ADHD; PITX3; LMX1A; LMX1B; BDNF; DAT; SNP; genes; genetics; BDNF;

    Abstract : Rationale: Dopamine synthesizing neurons are involved in a wide variety of functions. The most prominent dopamine pathways originate in the midbrain. The development, function and survival of these dopaminergic neurons are under the influence of numerous transcription and neurotrophic factors. READ MORE

  4. 4. Imaging brain aromatase by using PET A way to study anabolic steroid abuse

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Kayo Takahashi; Uppsala universitet.; [2008]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; aromatase; brain; molecular imaging; PET; [11C]Vorozole; amygdala; hypothalamus; anabolic-androgenic steroids; abuse; [18F]Vorozole analogs; MEDICINE Morphology; cell biology; pathology Cell biology Neuroscience; MEDICIN Morfologi; cellbiologi; patologi Cellbiologi Neurovetenskap;

    Abstract : Aromatase is an enzyme that facilitates the conversion of androgens to estrogens and may play a role in mood and mental status. The main theme of this thesis is the imaging of brain aromatase by use of the PET technique. The PET tracer for aromatase, 11C-labeled vorozole (VOZ) was developed and evaluated by with in vitro and in vivo methods. READ MORE

  5. 5. Ovarian Steroid Hormones, Emotion Processing and Mood

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Malin Gingnell; Uppsala universitet.; [2013]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; premenstrual dysphoric disorder; menstrual cycle; combined oral contraceptives; estrogen; estradiol; progesterone; ethinyl-estradiol; levonorgestrel; randomized clinical trial; placebo; fMRI; amygdala; ACC; insula; dlPFC; mPFC; IFG; MFG; Medicinsk vetenskap; Medical Science; Obstetrik och gynekologi; Obstetrics and Gynaecology;

    Abstract : It is known that some psychiatric disorders may deteriorate in relation to the menstrual cycle. However, in some conditions, such as premenstrual dysphoric disorder (PMDD), symptomatology is triggered mainly by the variations in ovarian steroid hormones. READ MORE