Sökning: "prefrontal cortex."

Visar resultat 1 - 5 av 131 avhandlingar innehållade orden prefrontal cortex..

  1. 1. The prefrontal cortex and information processing : nitric oxide signaling studied in an animal model of schizophrenia

    Författare :Kim Fejgin; Göteborgs universitet; []
    Nyckelord :schizophrenia; nitric oxide; prepulse inhibition; phencyclidine; prefrontal cortex; cGMP; baclofen; cognition;

    Sammanfattning : The prefrontal cortex has been extensively linked to several cognitive domains that are severely compromised in schizophrenia. It has therefore become a key region for studies on the disabling cognitive dysfunction commonly observed in patients with schizophrenia. LÄS MER

  3. 2. Episodic memory in the human prefrontal cortex

    Författare :Johan Sandblom; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : This thesis consisting of five papers examines the relationship between haemodynamic activation in the prefrontal cortex with episodic memory function in the healthy human brain. Brain function is measured with positron emission tomography (PET) and functional magnetic resonance imaging (FMRI) and episodic memory for words as well as visuo-spatial material is examined. LÄS MER

  4. 3. Variations in Functional Lateralization

    Författare :Peter E Wendt; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; posterior association cortex; prefrontal; DLPFC; regional cerebral blood flow; normal subjects; lateralization; asymmetry; performance; creativity; Neurology; neuropsychology; neurophysiology; cognitive; ethanol; activation; visual stimulation; functional; verbal; divergent; spatial; Neurologi; neurofysiologi; neuropsykologi;

    Sammanfattning : The general aim of this thesis was to study asymmetric activation of the neocortex in normal subjects, using the rCBF technique and different cognitive tasks. The aim was also to study individual and group variations of asymmetric activation, as well as factors pertaining to these variations. The thesis is based on four investigations. LÄS MER

  5. 4. How the past becomes present : neural mechanisms governing retrieval from episodic memory

    Författare :Kristiina Kompus; Lars Nyberg; Katrine Åhlström Riklund; Emrah Düzel; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; episodic retrieval; cognitive control; retrieval intention; prefrontal cortex; functional magnetic resonance imaging; event-related potentials; Neurophysiology; Neurofysiologi; diagnostisk radiologi; Diagnostic Radiology;

    Sammanfattning : Remembering previously experienced events can happen as a result of an effortful retrieval attempt. At other occasions, a memory can enter our minds without any apparent effort – or, indeed, intention - to retrieve. LÄS MER

  7. 5. 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