Sökning: "Fear conditioning"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Fear conditioning.
1. Erasing Fear : Effect of Disrupting Fear Memory Reconsolidation on Central and Peripheral Nervous System Activity
Sammanfattning : 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. LÄS MER
2. The Amygdala, Fear and Reconsolidation : Neural and Behavioral Effects of Retrieval-Extinction in Fear Conditioning and Spider Phobia
Sammanfattning : 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. LÄS MER
3. Imaging fear and anxiety in the human brain : Positron emission tomographic studies
Sammanfattning : Fear and anxiety are central human experiences. However, the relation between aspects of these aversive emotional states and brain function have previously been studied mostly in animals. LÄS MER
4. Serotonin in Fear and Anxiety
Sammanfattning : 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. LÄS MER
5. Wake and be fine? : The effect of sleep on emotional memory
Sammanfattning : The aim of this thesis was to examine the effect of sleep on emotional memories. The first two studies examined the role of sleep in the generalization of fear learning and the third study examined how sleep affected the forgetting of unwanted emotional memories. LÄS MER