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Showing result 1 - 5 of 518 swedish dissertations matching the above criteria.
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1. Erasing Fear : Effect of Disrupting Fear Memory Reconsolidation on Central and Peripheral Nervous System Activity
Abstract : Fear memories, here defined as learned associations between a stimulus and a physiological fear reaction, are formed through fear conditioning. In animals, fear memories, present in the lateral amygdala, undergo reconsolidation after recall. READ MORE
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2. Fear, Startle, and Fear-Potentiated Startle : Probing Emotion in the Human Brain
Abstract : The present thesis explored the neurobiological basis of three aspects of defense behaviors in humans. Positron emission tomography methodology was used, and changes in regional cerebral blood flow (rCBF) were measured as an index of neural activity. READ MORE
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3. Guided by Fear : Effects on attention and awareness
Abstract : Because the visual system has limited capacity, emotions such as fear may play an important role in guiding the selection of relevant input (LeDoux, 2000; Öhman & Mineka, 2001). The aim of the current thesis was to investigate how fear can guide the organism by influencing: (I) attentional processes, (II) awareness of the visual input, and (III) affective processing independent of awareness. READ MORE
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4. Diagnostic Aspects of Fear of Childbirth
Abstract : The first study presents the theoretical background of the Wijma Delivery Expectancy/Experience Questionnaire (W-DEQ) and an examination of this new instrument's construct validity and reliability. The W-DEQ has good reliability and measures the construct "fear of childbirth", when compared with other questionnaires. READ MORE
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5. Serotonin in Fear and Anxiety
Abstract : That the neurotransmitter serotonin (5-HT) has a central role in fear and anxiety is supported by numerous experimental and clinical studies. Arguably the most illustrative example is the effect of serotonergic-acting drugs, and in particular the selective serotonin reuptake inhibitors (SSRIs), in the treatment of anxiety disorders. READ MORE