Search for dissertations about: "somatosensory cortex"
Showing result 11 - 15 of 49 swedish dissertations containing the words somatosensory cortex.
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11. Structural and functional changes in the brain after surgically repaired median nerve injury
Abstract : Despite the best available surgical repair, traumatic median nerve injury within the forearm typically causes lifelong impairment in hand function. This stems from an inadequate reinnervation of the nerves supporting sensory functions of the thumb, index and long finger, and of nerves supplying intrinsic hand muscles. READ MORE
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12. Immunocytochemical studies of excitatory amino acid neurotransmitters and transporters in the spinal cord and nucleus submedius
Abstract : The amino acid glutamate is today regarded as the main fast excitatory neurotransmitter in the central nervous system and a large body of evidence support that glutamate serves as a neurotransmitter in primary afferent terminals in the spinal cord. Previous evidence also suggests that the closely related amino acid aspartate may serve a similar role in some primary afferent terminals. READ MORE
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13. MRI at 3 T of brain functions and fibre tracts adjacent to intracranial tumors
Abstract : The aims of the studies were: to evaluate the spatial resolution of fMRI at 3 T by studying fingersomatotopy in area 3 b of the primary sensory area (Paper 1); to investigate the potential of fMRI at 3T as a clinical tool for preoperative evaluation of patients with intracranial tumors (Paper 2); to investigate the effect of glioma resection on the spatial extent of fMRI activation as compared to the normal within-subject variability (Paper 3); to determine whether the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) can distinguish tumor-infiltrated edema of gliomas from pure edema of meningiomas and metastases (Paper 4). Results: Strict somatotopic organisation in the primary sensory cortex was shown in the group average; at the subject level the thumb was located laterally, anteriorly and inferiorly to the little finger in 94 % of subjects (Paper 1). READ MORE
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14. Machine learning for identification of brain activity patterns with applications in gentle touch processing
Abstract : Since the first mention of artificial intelligence in the 1950s, the field of machine learning has provided increasingly appealing tools for recognition of otherwise unintelligible pattern representations in complex data structures. Human brain activity, acquired using functional magnetic resonance imaging (fMRI), is a prime example of such complex data where the utility of pattern recognition has been demonstrated in a wide range of studies recently (Haynes et al. READ MORE
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15. Touching cognition : somatosensory processing and plasticity deficits in mouse barrel cortex
Abstract : Senses together with thoughts and experience are key factors that shape our cognition. Touch is an important source of sensory information. Disturbances to the development of the somatosensory system have serious consequences for social behaviour and may lead to many neurodevelopmental disorders. READ MORE
