Sökning: "Amygdala"

Visar resultat 11 - 15 av 108 avhandlingar innehållade ordet Amygdala.

1. 11. Innate and Conditioned Fear : Investigating Responses to Threat using Psychophysiology, Functional Magnetic Resonance Imaging, and Twin Methodology

   Författare :Jörgen Rosén; Fredrik Åhs; Miguel Fullana; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Emotion; Imminent threat; Social threat; Twins; Face; Personal space; fMRI; Virtual reality; Amygdala.; Psychology; Psykologi;

   Sammanfattning : Evolution has shaped systems in the human brain to respond to danger. Some of these systems are innate or hard-wired, while others are learned throughout the entire life span. One commonly studied type of learned threat, conditioned fear, is acquired from experiencing aversive consequences. LÄS MER

3. 12. The amygdala, experimental anxiety and alcohol consumption : an integrative study in the rat

   Författare :Christian Möller; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Amygdala; Anxiety; Alcoholism; Behaviour; Rat;

   Sammanfattning : The amygdala integrates emotionally relevant stimuli. Here, the aversive value of stimuli and memories is extracted and transduced into a behavioral response. This rapid processing leads to a coordinated activation of autonomic, endocrine, behavioral and emotional functions that together comprise the fear reaction. LÄS MER

4. 13. Emotion and Learning - A Computational Model of the Amygdala

   Författare :Jan Morén; Kognitionsvetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied and experimental psychology; Sociologi; Sociology; orbitofrontal cortex; learning; hippocampus; emotions; computational models; mygdala; classical conditioning; Tillämpad och experimentell psykologi; Philosophy; Filosofi;

   Sammanfattning : The amygdala is a small subcortical structure that has long been implicated in the conditioning of fear and other emotions. It is heavily interconnected to a number of both cortical and subcortical structures and is thus well placed to integrate sensory inputs from multiple areas to produce emotional reactions directly as well as influence learning and attention systems. LÄS MER

5. 14. The Amygdala, Arousal and Memory: From Lesions to Neuroimaging

   Författare :Fredrik Åhs; Mats Fredrikson; Dieter Vaitl; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Psykologi; Psychology; Psykologi;

   Sammanfattning : Emotional events are better remembered than neutral events. But what are the mechanisms behind this memory enhancing effect? It seems that they depend on the arousal level at the moment we experience the event to be remembered. LÄS MER

7. 15. Mind really does matter : The Neurobiology of Placebo-induced Anxiety Relief in Social Anxiety Disorder

   Författare :Vanda Faria; Tomas Furmark; Mats Fredrikson; Predrag Petrovic; Uppsala universitet; []
   Nyckelord :Placebo effect; anxiolysis; SAD; PET; TPH2 G-703T polymorphism; SSRIs; amygdala subregions; prefrontal cortex.; Psychology; Psykologi;

   Sammanfattning : The placebo effect, a beneficial effect attributable to a treatment containing no specific properties for the condition being treated, has been demonstrated in a variety of medical conditions. This thesis includes four studies aimed at increasing our knowledge on the neurobiology of placebo. LÄS MER