Search for dissertations about: "Conditioned fear"

Showing result 1 - 5 of 10 swedish dissertations containing the words Conditioned fear.

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

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

    Abstract : 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. READ MORE

  2. 2. Serotonin in Fear and Anxiety

    Author : S Melker Hagsäter; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serotonin; anxiety; fear; SSRI; IBS;

    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

  3. 3. Overlapping Neural Substrates of Alcohol- and Anxiety-Related Behavior in the Rat

    Author : Riccardo Barchiesi; Estelle Barbier; Markus Heilig; Annika Thorsell; Andrew Holmes; Linköpings universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alcohol use disorder; Anxiety disorder; Behavior; Rat; Prelimbic cortex; Amygdala; Basolateral amygdala; Stress; Epigenetics; Syt1; Prdm2; Avp; Conditioned fear; Social defeat stress; Witness stress; Susceptibility; Resilience;

    Abstract : Alcohol use is a leading cause of death and disease worldwide. A large part of this disease burden is associated with alcohol use disorder (AUD), a diagnostic category characterized by excessive use in spite of negative consequences ("compulsive use"), a loss of control over intake, and choice of alcohol over natural rewards. READ MORE

  4. 4. Learning not to fear : extinction, erasure, and the recovery of fear memories

    Author : Armita Golkar; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Abstract : Much of the progress in understanding the mechanisms underlying the formation and persistence of fear memories comes from studies of Pavlovian conditioning and extinction. Recently, considerable interest has been turn to strategies that facilitate the development and persistence of extinction. READ MORE

  5. 5. Genetic gating of human fear, fear learning and extinction : Psychophysiological, brain imaging (fMRI) and clinical studies

    Author : Tina B Lonsdorf; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Abstract : Individuals differ in their reaction to the same environmental stressor. After being opposed to the same trauma, some individuals will develop affective pathologies, while others will not. This is assumed to result, at least partly, from a differential genetic vulnerability. READ MORE