Sökning: "prefrontal"

Visar resultat 1 - 5 av 143 avhandlingar innehållade ordet prefrontal.

1. 1. 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

3. 2. 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

4. 3. 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

5. 4. The effect of intermittent theta-burst stimulation over the dorsomedial prefrontal cortext on brain activity in depression

   Författare :Wiebke Struckmann; Robert Bodén; Jonas Persson; Malin Gingnell; Paul Hamilton; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dorsomedial prefrontal cortex; iTBS; transcranial magnetic stimulation; Psychiatry; Psykiatri;

   Sammanfattning : Repetitive transcranial magnetic stimulation is an emerging alternative for treatment-resistant depression, with ongoing developments in stimulation protocols and treatment targets. As such, intermittent theta-burst stimulation (iTBS) delivered over the dorsomedial prefrontal cortex (dmPFC) has shown promise, however establishing a need for neuroimaging studies to further understand the treatment mechanisms. LÄS MER

7. 5. Modulation of prefrontal glutamatergic transmission and 'atypicality' of antipsychotic drugs

   Författare :Åsa Konradsson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The glutamate hypothesis of schizophrenia suggests a relationship between hypoactive NMDA receptor-mediated glutamatergic transmission and the pathophysiology of schizophrenia. Previous results have demonstrated that atypical (e.g. clozapine, risperidone, and olanzapine), but not typical (e. LÄS MER