Sökning: "Conditioned fear"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Conditioned fear.

  1. 1. 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. 2. Serotonin in Fear and Anxiety

    Författare :S Melker Hagsäter; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serotonin; anxiety; fear; SSRI; IBS;

    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

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

    Författare :Riccardo Barchiesi; Estelle Barbier; Markus Heilig; Annika Thorsell; Andrew Holmes; Linköpings universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  5. 4. Sensorimotor function following anterior cruciate ligament injury : movement control, proprioception and neuropsychological perspectives

    Författare :Adam Grinberg; Charlotte Häger; Martin Björklund; Dario G. Liebermann; Clare Ardern; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ACL; knee injury; sensorimotor control; proprioception; functional test; fear; anxiety; kinematics; electromyography; EMG; electroencephalography; EEG; brain; neuroplasticity; injury prevention; Sports Medicine; idrottsmedicin;

    Sammanfattning : Background: The high incidence of anterior cruciate ligament (ACL) injuries in sports suggests an involvement of both biomechanical and neurocognitive risk factors. Athletes are constantly exposed to challenging sports scenarios, which are often characterised by high-intensity movements combined with a multi-stimuli environment and continuous psychological pressure. LÄS MER

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

    Författare :Armita Golkar; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : 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. LÄS MER