Sökning: "Central pattern generator"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Central pattern generator.

  1. 1. Modeling of bursting mechanisms and coordination in a spinal central pattern generator

    Författare :Jeanette Hellgren Kotaleski; KTH; []
    Nyckelord :adaptation; central pattern generator; computer simulation; inter segmental coordination; lamprey; locomotion; neural network; rhythmogenesis; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Mechanisms underlying lotal bursting as well as coordinationbetween different levels of a spinal CPG generating locomotionhave been investigated using computer simulations. A"primitive" jawless vertebrate, the lamprey, is used a.s aprototype model. LÄS MER

  3. 2. Studies of Spinal Motor Control Networks in Genetically Modified Mouse Models

    Författare :Henrik Gezelius; Klas Kullander; Ted Ebendal; Martyn Goulding; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; acetyl choline; central nervous system; central pattern generator; Cre recombinase; development; genetic screen; glutamate; interneuron; motor neuron; mouse; mouse genetics; movement; network; neuronal network; nicotinic receptors; physiology; Renshaw cell; rhythm; spinal cord; transmitter; Neuroscience; Neurovetenskap; Neurobiology; Neurobiologi; Molecular neurobiology; Molekylär neurobiologi; Neurophysiology; Neurofysiologi; Neurobiology; Neurobiologi; medicinsk utvecklings- och neurobiologi; Developmental Neurosciences;

    Sammanfattning : Spinal neurons are important in several aspects motor control. For example, the neurons essential for locomotor movements reside in the ventral spinal cord. In this thesis, different motor control functions are being related to neuronal populations defined by their common expression of a gene. LÄS MER

  4. 3. Statistical Downscaling of Precipitation from Large-scale Atmospheric Circulation : Comparison of Methods and Climate Regions

    Författare :Fredrik Wetterhall; Sven Halldin; Chong-Yu Xu; Lars-Christer Lundin; Deliang Chen; Hans von Storch; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hydrology; Statistical; Downscaling; Precipitation; Large-scale circulation; PCA; TWS; Weather pattern; Regression; Weather generator; Hydrologi; Hydrology; Hydrologi;

    Sammanfattning : A global climate change may have large impacts on water resources on regional and global scales. General circulation models (GCMs) are the most used tools to evaluate climate-change scenarios on a global scale. They are, however, insufficiently describing the effects at the local scale. LÄS MER

  5. 4. Deciphering the Locomotor Network : The Role of Spinal Cord Interneurons

    Författare :Sharn Perry; Klas Kullander; Kimberly Dougherty; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Locomotion; central pattern generator; mouse; gait; recurrent inhibition; Renshaw cell; Dmrt3; Chrna2; Neuroscience; Neurovetenskap;

    Sammanfattning : In the spinal cord, an intricate neural network generates and coordinates the patterning of limb movements during locomotion. This network, known as the locomotor central pattern generator (CPG), comprises of various cell populations that together orchestrate the output of motor neurons. LÄS MER

  7. 5. Computer Simulation of the Neural Control of Locomotion in the Cat

    Författare :Nalin Harischandra; Örjan Ekeberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Locomotion; Computer simulation; Central pattern generator; Muscle activation; Linear transfer functions; Sensory feedback; Neural control; Computer science; Datavetenskap;

    Sammanfattning : Locomotion is one of the most important behaviours and requires interaction between sensors at various levels of the nervous system and the limb muscles of an animal. The basic neural rhythm for locomotion in mammals has been shown to arise from local neural networks residing in the spinal cord and these networks are known as central pattern generators (CPGs). LÄS MER