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Measurement of steady-state evoked potentials during transcutaneous electrical stimulation : a pilot study

Athlekar, Saumitra (2019) Measurement of steady-state evoked potentials during transcutaneous electrical stimulation : a pilot study.

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Abstract:Chronic pain has no effective treatment, as its exact mechanism is unknown. As this disorder may be caused by abnormalities in the nervous system, research into the human sensory system, including the mechanosensory system (perception of touch), is crucial. In this study, sustained electrical stimulation applied to arm of the subjects is used to evoke a steady-state response in the subjects' brain. By measuring the EEG data from the subject during the stimulation, frequency tagging is used to identify signals associated with the stimulation, in the brain activity.. Two types of stimuli were used in the experiments and the processed EEG data was analysed to check for frequency-tagged brain response, and to explore the influence of experimental parameters. The tagged brain response was found in all subjects, but some had a noticeable stimulus artefact in them, so the reliability of these results is questionable. Lack of efficacious methods for removing noise and other undesirable signals hinders the research, so better methods are needed. Additionally, the parameters set for the stimulation signal and the area over which the subject feels the stimulus influence the amplitude of the measured output. This opens up a wide range of possibilities for future research.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:42 biology, 53 electrotechnology
Programme:Electrical Engineering BSc (56953)
Link to this item:http://purl.utwente.nl/essays/77720
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