Sökning: "somatosensory cortex"

Visar resultat 21 - 25 av 49 avhandlingar innehållade orden somatosensory cortex.

  1. 21. Hedonic, neural, and autonomic responses to prolonged gentle touch

    Författare :Chantal Triscoli; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; long-lasting touch; CT afferents; pleasantness; liking; wanting; satiety; orbitofrontal cortex; reward; heart rate variability;

    Sammanfattning : Physical contact among individuals, such as caressing and cuddling, is connoted by a strong emotional value, and is usually perceived as a pleasant and rewarding experience. C tactile (CT) afferents are a class of fibres that are specific channels for detecting touch at a caress-like veloc-ity (between 1 and 10 cm/s). LÄS MER

  3. 22. Observations on morphology and function of cutaneous and subcutaneous sensory mechanoreceptors : an experimental study in mammals

    Författare :Birgit Stark; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :mechanoreceptors; somatosensory organisation; blood-nerve barrier; Glucose transporter-1; nerve regeneration; TGF-ß family; neurotrophin receptors;

    Sammanfattning : Tactile sensory discrimination is dependent upon an intact system of peripheral mechanoreceptors, their nerve fibre afferents with cell bodies in the dorsal root ganglion and the dorsal column-medial lemniscal system which relays tactile information from the skin to the cortex. Injury to any part of the afferent pathways leads to compromised mechanoreceptive perception. LÄS MER

  4. 23. Nervous mechanisms of postural control

    Författare :Anastasia Karayannidou; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Postural control; equilibrium; body confguration; motor cortex; reticulospinal system; standing; locomotion; spinal cord injury; cat; rabbit; lamprey;

    Sammanfattning : Maintenance of body confguration and orientation in space (postural control) is a vital motor function. A general goal of the present study was to analyze nervous feedback mechanisms for the maintenance of posture during different motor behaviors and with different postural perturbations. LÄS MER

  5. 24. Brain processing of experimental muscle pain and its interrelation with proprioception and muscle fatigue : positron emission tomography study

    Författare :Alexander Korotkov; Docent Tomas Graven-Nielsen; Umeå universitet; []
    Nyckelord :Experimental muscle pain; Hypertonic saline; Kinesthesia; Proprioception; Movement; Vibration; Muscle fatigue; Brain; Imaging; Positron emission tomography; Regional cerebral blood flow;

    Sammanfattning : Chronic muscle pain is a significant medical and social problem and better understanding of the pathophysiological mechanisms involved is an important requirement for further development of diagnostics, treatment and rehabilitation methods. Experimental imaging studies have investigated functional neuroanatomy of different pain components. LÄS MER

  7. 25. The neurophysiology of working memory : functional mapping of the human brain with positron emission tomography

    Författare :Torkel Klingberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Working memory (WM) refers to the retention, or keeping on-line, of information over short periods of time. WM is thought to be important for a variety of cognitive functions, including problem solving, learning and reading. LÄS MER