Search for dissertations about: "Insect nervous system"

Showing result 1 - 5 of 7 swedish dissertations containing the words Insect nervous system.

  2. 1. Evolution and Development of the Onychophoran Head and Nervous System

    Author : Joakim Eriksson; Graham Budd; John Peel; Gerhard Scholtz; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Onychophora; Development; Nervous System; Immunohistochemistry; Gene Expression; Biologi; Biology; Biologi; zoologisk utvecklingsbiologi; Animal Development;

    Abstract : Onychophorans are closely allied to the arthropods and possess a body organisation more similar to Middle Cambrian fossils than to recent arthropods. This means that onychophorans in some respects can be regarded as a model for the last common ancestor to both the Arthropoda and the Onychophora. READ MORE

  4. 2. Neurons against Noise : Neural adaptations for dim light vision in hawkmoths

    Author : Anna Stöckl; Funktionell zoologi; []
    Keywords : vision; insect; hawkmoth; motion vision; spatial and temporal summation; dim light; neural processing;

    Abstract : All animals perceive the world through their senses, which form the basis for their decisions and motor actions. However, when these all-important senses reach their limit and cease to provide reliable information, the animal’s survival is threatened. READ MORE

  5. 3. Chemical signalling in the Drosophila brain : GABA, short neuropeptide F and their receptors

    Author : Lina E. Enell; Dick Nässel; Jonathan Bacon; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Insect nervous system; Drosophila; GABA; sNPF; GPCR; ion channel receptor; feeding; metabolic stress; olfaction; antennal; lobe; mushroom body; Morphology; Morfologi; funktionell morfologi; Functional Zoomorphology;

    Abstract : Gamma-aminobutyric acid (GABA) and short neuropeptide F (sNPF) are widespread signalling molecules in the brain of insects. In order to understand more about the signalling and to some extent start to unravel the functional roles of these two substances, this study has examined the locations of the transmitters and their receptors in the brain of the fruit fly Drosophila melanogaster using immunocytochemistry in combination with Gal4/UAS technique. READ MORE

  6. 4. Neuropeptides Related to Tachykinins and Leucokinins in the Developing Nervous System of Insects

    Author : Kim Min Yung; Karoly Elekes; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoologi; Zoology;

    Abstract : In insects more than 300 neuropeptides have been identified and these have been implicated in a vast range of functional roles. These peptides have been grouped into families based on amino acid sequence similarities. READ MORE

  7. 5. Distribution and actions of insect tachykinin-related peptides

    Author : Åsa Winther; Peter D. Evans; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Insects; Insekter;

    Abstract : Tachykinin-related peptides (TRPs) have been identified in a number of invertebrates belonging to the mollusca, euchiurdea, crustacea and insecta. The TRPs are named after their sequence similarities and possible common evolutionary relationship to the vertebrate tachykinins. READ MORE