Sökning: "locomotor-activity"

Visar resultat 1 - 5 av 67 avhandlingar innehållade ordet locomotor-activity.

1. 1. A behavioural investigation into Eristalis tenax : Pursuit, approach estimation, locomotor activity and rearing

   Författare :Malin Thyselius; Karin Nordström; Anna Rostedt Punga; Yuri Ogawa; Emily Baird; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Eristalis tenax; Insect rearing; Hoverflies; Pollinators; Circadian rhythm; Target detection; Motion vision; Pursuit; LAMS; Flight arena;

   Sammanfattning : Hoverflies are suggested to be the 2nd most important pollinator group after bees and bumblebees, and with the changing climate and dwindling numbers of pollinators it might never have been more important understanding our pollinators. Given the hoverflies’ small brains, beautiful aerial acrobatics, good temporal resolution, but limited spatial resolution, these flies make interesting study animals for flight behaviour and vision research. LÄS MER

3. 2. Circadian Rhythms in Moth Sex Pheromone Communication

   Författare :Germund von Wowern; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physiology of invertebrates; växtparasitologi; Entomologi; plant parasitology; Entomology; Ecology; Ekologi; locomotor activity; social synchronisation; PDH; corazonin; PBAN; pheromone response; sex phermone; Lepidoptera; Ryggradslösa djurs fysiologi; calling behaviour; circadian rhythm;

   Sammanfattning : Sex pheromone communication and related physiological processes are regulated by circadian clock mechanisms in many moth species. This thesis includes studies of circadian rhythms in sexually relevant behaviours and communication in the Egyptian cotton leafworm Spodoptera littoralis, the turnip moth Agrotis segetum, the Indian meal moth Plodia interpunctella and the Mediterranean flour moth Ephestia kuehniella. LÄS MER

4. 3. On cholinergic mechanisms involved in ethanol reinforcement. A behavioral and neurochemical study in rodents

   Författare :Anna Larsson; Göteborgs universitet; []
   Nyckelord :Acetylcholine; Dopamine; Ethanol; Locomotor activity; Microdialysis; Nicotine; Nicotinic acetylcholine receptors; Rodents; Reward;

   Sammanfattning : Alcohol (ethanol) and smoking (nicotine) are commonly co-abused in human beings. Drugs of abuse interact with the brain mesolimbic dopamine system, an important part of the brain reward system. These dopaminergic neurons originate in the ventral tegmental area and project to e.g. LÄS MER

5. 4. Acute and chronic effects by stimulants on behavior and striatal neurotransmission in the rat

   Författare :Amir Lotfi Moghaddam; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; withdrawal; nicotine; amphetamine; striatum; GABA; glutamate; dopamine; sensitization; locomotor activity;

   Sammanfattning : Nicotine and amphetamines are the most widely abused stimulants. The main aim of the studies in this thesis was to investigate how these two drugs of abuse affect distinct regions of the rat brain involved in development of habitual and compulsive behavior, namely subregions of striatum in the rat. LÄS MER

7. 5. Nicotine sensitization and loss of inhibitory control. Role of serotonin

   Författare :Peter Olausson; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Nicotine; Amphetamine; Locomotor activity; Inhibitory control; Dopamine; Serotonin; Sensitization; Nucleus accumbens; Elevated plus-maze;

   Sammanfattning : Drug dependence is a devastating disorder present in all parts of the world. It is manifested by craving and a general loss of control over the drug intake and the life situation, ultimately leading to compulsive use of the addictive drug at the expense of normal behavioral patterns. LÄS MER