Sökning: "excitatory drive"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden excitatory drive.

1. 1. Motor control in zebrafish : excitatory drive and developmental changes

   Författare :Sabine Görgens; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : An essential characteristic of human and animal life is the ability to move from one place to another, in order to survive in a complex environment. All the different forms of locomotion, like walking, swimming, crawling and flying, have one common feature: rhythmic and alternating movements of the body. LÄS MER

3. 2. Organization of the spinal locomotor network in zebrafish : pattern of recruitment and origin of excitatory drive

   Författare :Emma Eklöf Ljunggren; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Locomotion is of vital importance for animals to survive in a complex environment. Locomotor movements are generated by neuronal networks that reside in the spinal cord and are composed of motoneurons and interneurons. LÄS MER

4. 3. Molecular coding and physiological roles of excitatory neurons in motor control

   Författare :Vanessa Ribeiro Caldeira; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Locomotion is a complex motor action that provides humans and other animals with the ability to move through the environment. In vertebrate locomotion, supraspinal centers convey the initiating or terminating command signals to the spinal cord which in turn generates the rhythm and pattern of muscle activities underlying locomotor activity. LÄS MER

5. 4. Neuromuscular adaptations to muscle fatigue during submaximal isometric contractions in man

   Författare :Wolfgang N Löscher; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :isometric; electromyography; tremor; H-reflex; twitch; motoneuron; recruitment; la-afferents; recurrent inhibition; central fatigue; excitatory drive; gastrocnemius; soleus; triceps surae; tendon vibration; ischemia; Renshaw cellStockholm 1995;

   Sammanfattning : During a sustained contraction, the force producing capacity of a muscle gradually decreases. In order to maintain a constant force output, the neuromuscular system has to adapt to the contractile fatigue process. LÄS MER

7. 5. Generation and selection of motor behaviors neural circuits and endocannabinoid modulation

   Författare :Jianren Song; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The generation of basic motor behavior relies on the activation of spinal neuronal networks called central pattern generators (CPGs). Descending drive from higher brain areas activates the spinal CPG to generate motor behavior. In the face of changes in the environment, animals make constant motor behavioral selection. LÄS MER