Search for dissertations about: "Ventral Hippocampus"
Showing result 1 - 5 of 34 swedish dissertations containing the words Ventral Hippocampus.
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1. On the Mechanisms Behind Hippocampal Theta Oscillations : The role of OLMα2 interneurons
Abstract : Theta activity is one of the most prominent rhythms in the brain and appears to be conserved among mammals. These 4-12 Hz oscillations have been predominantly studied in the dorsal hippocampus where they are correlated with a broad range of voluntary and exploratory behaviors. READ MORE
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2. Brain neurotrophin levels and mouse behavior : relationship to environmental influences
Abstract : All normal functions over the lifetime of an animal are based on a dynamic balance of at least three fundamental elements: brain, environment and behaviour. This thesis investigated different aspects of these three elements and revealed novel interactions of brain neurotrophins, environmental influences and emotional behaviour in mice. READ MORE
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3. Modulation of acetylcholine release by serotonergic 5-HT1A and 5-HT1B receptors : a microdialysis study in the awake rat
Abstract : The aim of the thesis was to investigate the effects of the 5-HT1A receptor antagonist robalzotan (NAD-299) and the 5-HT1B receptor antagonist NAS-181 ((R)-(+)-2-(3-morpholinomethyl-2Hchromen-8-yl) oxymethyl-morpholine methanesulfonate) on cholinergic, glutamatergic and GABAergic neurotransmission in the rat brain in vivo. The extracellular levels of acetylcholine (ACh), glutamate (Glu) and GABA were monitored by microdialysis in the frontal cortex (FC) and ventral hippocampus (VHipp) in separate groups of awake rats. READ MORE
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4. Hippocampal galanin and acetylcholine in spatial learning
Abstract : The aim of the present thesis was to study how the neuropeptide galanin affects the neurochemistry and functional activity of the cholinergic septohippocampal projection, which plays a pivotal role in learning and memory. This cholinergic system is strongly impaired in Alzheimer's disease and in age-related dementias. READ MORE
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5. In vitro and postmortem studies of the brain opioid system : association to opiate dependence
Abstract : Opioids such as heroin are highly addictive illicit drugs. The μ opioid receptor (MOR) plays a central role in mediating the effects of opiates and related opioid. READ MORE