Sökning: "inlärning and hjärnan"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden inlärning and hjärnan.

1. 1. S100B and Cardiac Surgery

   Författare :Henrik Bjursten; Thoraxkirurgi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; S100-B; S100B; S100beta; brain damage; cardiac surgery; CABG; renal function; autotransfusion; Cardiovascular system; serum marker; Kardiovaskulära systemet;

   Sammanfattning : The brain-derived protein S100B is a 21 Kda dimerand have been used as a serum marker for brain damage of different etiology. The feasability of protein S100B as serum marker for brain damage after cardiac surgery was studied in this thesis. One unexpected finding was made, which changed the basis for interpration of S100B levels. LÄS MER

3. 2. Emotion and Learning - A Computational Model of the Amygdala

   Författare :Jan Morén; Kognitionsvetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied and experimental psychology; Sociologi; Sociology; orbitofrontal cortex; learning; hippocampus; emotions; computational models; mygdala; classical conditioning; Tillämpad och experimentell psykologi; Philosophy; Filosofi;

   Sammanfattning : The amygdala is a small subcortical structure that has long been implicated in the conditioning of fear and other emotions. It is heavily interconnected to a number of both cortical and subcortical structures and is thus well placed to integrate sensory inputs from multiple areas to produce emotional reactions directly as well as influence learning and attention systems. LÄS MER

4. 3. Temporal dynamics of brain plasticity : characterizing brain structural changes during skill acquisition

   Författare :Tomás Mediavilla; Daniel Marcellino; Alexandra Badea; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Motor learning; brain plasticity; structural plasticity; magnetic resonance imaging; voxel-based morphometry; tractography; connectivity; motor cortex; posterior parietal cortex; cerebellum; vesicular glutamate transporter;

   Sammanfattning : Traditionally, structural plasticity in the human brain has been considered to follow a linear or asymptotic increase over the course of training. However, recent studies using structural MRI revealed transient increases in grey matter volume (GMV) with learning. LÄS MER

5. 4. DNA repair and the p53 pathway in ischemic and traumatic brain injury

   Författare :Gregor Tomasevic; Neurokirurgi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neuronal death; DNA repair; knock-out mice; XPA; p53; mRNA; hippocampus; preconditioning; hypothermia; trauma; Brain; ischemia; neurobehavior; Neurology; neuropsychology; neurophysiology; Neurologi; neuropsykologi; neurofysiologi;

   Sammanfattning : Ischemic and traumatic brain damage are major causes of disability and death. While much effort has been spent to develop pharmacological treatments for these conditions, no neuroprotective drugs are in clinical use. LÄS MER

7. 5. Novel insights into the role of serotonin in control of β-cell fuction

   Författare :Hedvig Bennet; Celiaki och diabetes; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : Inadequate insulin secretion is a central component in the development of Diabetes Mellitus, resulting from reduced pancreatic β-cell mass, as well as diminished β-cell function. Islet produced 5-hydroxy tryptamine (5-HT) is suggested to regulate insulin secretion and β-cell mass in rodents during pregnancy and in metabolically challenged states. LÄS MER