Sökning: "electroencephalography EEG"

Visar resultat 16 - 20 av 30 avhandlingar innehållade orden electroencephalography EEG.

  1. 16. Modelling and Inference using Locally Stationary Processes : Biomedical applications

    Författare :Rachele Anderson; Statistical Signal Processing Group; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Modelling of Time-Varying Signals; Locally Stationary Processes; Statistical Inference; Time-frequency Estimation; Regression; EEG Signals; HRV Signals;

    Sammanfattning : This thesis considers statistical methods for non-stationary signals, specifically stochastic modelling, inference on the model parameters and optimal spectral estimation. The models are based on Silverman’s definition of Locally Stationary Processes (LSPs). LÄS MER

  3. 17. Non-invasive Functional Neuroimaging for Localizing Epileptic Brain Activity

    Författare :Yazdan Shirvany; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mathematical Dipole; Finite Element Method; Source localization; Structural Magnetic Resonance Imaging; Forward Problem; Inverse Problem; Particle Swarm Optimization; Non-invasive EEG; Somatosensory Evoked Potentials; Epileptic Spike; Functional Neuroimaging;

    Sammanfattning : Surgical therapy has become an important therapeutic alternative for patients with medically intractable epilepsy. Correct and anatomically precise localization of the epileptic focus, preferably with non-invasive methods, is the main goal of the pre-surgical epilepsy diagnosis to decide if resection of brain tissue is possible. LÄS MER

  4. 18. Multimodal phenotyping of synaptic damage in Alzheimer’s disease : translational perspective with focus on quantitative EEG

    Författare :Una Smailovic; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Alzheimer’s disease (AD) is a progressive neurodegenerative disorder and the most common form of dementia. Accumulation of AD-associated pathology in the brain may begin a decade or more before the appearance of the first symptoms of the disease. LÄS MER

  5. 19. Pharmacodynamics of low-dose clonazepam in children with epilepsy or spasticity : neurophysiological and clinical studies

    Författare :Maria Dahlin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Children; epilepsy; spasticity; AED; clonazepam; seizures; electroencephalography; magnetoencephalography; dynamometer;

    Sammanfattning : In children with epilepsy the evaluation of the efficacy of an antiepileptic drug (AED) is usually made by recording the seizure frequency. Some seizures are subtle and difficult to detect and epileptiform activity even without clinical seizures may cause cognitive dysfunctions. LÄS MER

  7. 20. Concreteness, Specificity and Emotional Content in Swedish Nouns : Neurocognitive Studies of Word Meaning

    Författare :Frida Blomberg; Allmän språkvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; abstract; concrete; nouns; semantics; specificity; emotion; imageability; anomia; word ratings; EEG; ERP; N400; N700; dichotic listening; hemispheric lateralisation; lexical decision; Swedish; neurolinguistics; Lingvistik;

    Sammanfattning : The present thesis investigated Swedish nouns differing in concreteness, specificity and emotional content using linguistic, psycholinguistic and neurolinguistic methods. The focus of Paper I was a semantic analysis of discourse produced by a person with a lesion in visual (left occipital) cortex. LÄS MER