Sökning: "anterior cingulate"

Visar resultat 1 - 5 av 48 avhandlingar innehållade orden anterior cingulate.

1. 1. Human iris characteristics as biomarkers for personality

   Författare :Mats Larsson; Håkan Stattin; Nancy Pedersen; Richard J. Rose; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Personality; iris characteristics crypts pigment dots contraction furrows; candidate genes MITF PAX6 SIX3 LMX1B FOXC1 FOXC2 PITX2 BMP4 OLFM3 MSX1 MSX2; anterior cingulate; genetic correlations; heritability; hemispheric asymmetries; approach-related behaviors; Psychology; Psykologi; Psykologi; Psychology;

   Sammanfattning : This dissertation explains why behavioral genetic research can be better informed by using characteristics in the human iris as biomarkers for personality, and is divided into five parts. Part I gives an introduction to the classical twin method and an overview of the findings that have led most developmental researchers to recognize that the normal variation of personality depends on a complex interplay between genetic and environmental factors. LÄS MER

3. 2. Molecular Adaptations in the Endogenous Opioid System in Human and Rodent Brain

   Författare :Muhammad Zubair Hussain; Georgy Bakalkin; Anita Hansson; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Endogenous Opioid System; Dynorphins; Lateralization; Alcohol Dependence; Emotions; Traumatic Brain Injury; Anterior Cingulate Cortex; Dorsal Striatum; Neuroscience; Neurovetenskap;

   Sammanfattning : The aims of the thesis were to examine i) whether the endogenous opioid system (EOS) is lateralized in human brain areas involved in processing of emotions and pain; ii) whether EOS responses to unilateral brain injury depend on side of lesion, and iii) whether in human alcoholics, this system is involved in molecular adaptations in brain areas relevant for cognitive control of addictive behavior and habit formation.The main findings were that (1) opioid peptides but not opioid receptors and classic neurotransmitters are markedly lateralized in the anterior cingulate cortex involved in processing of  positive and negative emotions and affective component of pain. LÄS MER

4. 3. Imaging fear and anxiety in the human brain : Positron emission tomographic studies

   Författare :Håkan Fischer; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; fear; anxiety; panic; conditioning; human; brain; neuroimaging; positron emissiontomography; PET; Psykologi; Psychology; Psykologi; Psychology; psykologi;

   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

5. 4. The aging frontal lobe in health and disease : a structural magnetic resonance imaging study

   Författare :Olof Lindberg; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Cortical and subcortical regions of the brain decrease in volume in normal as well as pathological aging. Previous studies indicate that certain parts of the brain, like the prefrontal cortex, may be particularly vulnerable to age-related processes which are manifested by significant volume loss in this region. LÄS MER

7. 5. Imaging Chronic Pain and Inflammation : Positron Emission Tomography Studies of Whiplash Associated Disorder

   Författare :Clas Linnman; Mats Fredrikson; Tomas Furmark; Israel Liberzon; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Whiplash Associated Disorder; PET; brain; chronic pain; rCBF; neurokinin-1; Substance P; inflammation; D-deprenyl; fear of movement; kinesiophobia; ; Psychology; Psykologi;

   Sammanfattning : This thesis is on chronic neck pain after a rear impact car injury, so called whiplash associated disorder (WAD). Three empirical studies using positron emission tomography (PET) with different radioligands have been performed. LÄS MER