Frekvencijska analiza elektroencefalograma za detekciju vidnih evociranih potencijala stabilnog stanja

undergraduate thesis

• Title (english): Frequency analysis of electroencephalogram for detection of steady-state visual evoked potentials
• Author: Dajana Bralić
• Mentor: Mario Cifrek (mentor)
• Committee member: Mario Cifrek (predsjednik povjerenstva)
• Committee member: Tomislav Pribanić (član povjerenstva)
• Committee member: Željka Lučev Vasić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Elektroencefalografija je metoda mjerenja električne aktivnosti mozga koja daje uvid u njegove aktivnosti. Pri istraživanju pozornost je bila usmjerena na vidne evocirane potencijale. Prezentirano je ukratko korištenje alata za mjerenje potencijala mozga i algoritam kanonske korelacije (engl. canonical-correlation analysis) za izlučivanje što kvalitetnije informacije o vidnim evociranim potencijalima stabilnog stanja. Pomoću kanonske korelacije ( saznajemo koje elektrode nam daju najbolje rezultate. Ispostavilo se da se radi o elektrodama u okcipitalnom režnju. S obzirom da se vizualni korteks mozga nalazi u okcipitalnom režnju, dobiveni rezultati su u skladu s elektrofiziologijom. To saznanje olakšava daljnja mjerenja istog ispitanika i daje uvid u raznolikost moždanih funkcija ovisno o lokaciji na skalpu.

Abstract (english)

Electroencephalography is a method for measuring electrical activity of the brain. In this research the attention has been focused on visual evoked potentials. It is presented how to use the tools for measuring the potential caused by brain activities and the canonical correlation analysis algorithm that is used for extracting high quality information about steady-state visual evoked potentials. Using canonical correlation revealed which electrodes gave us the best results. It turned out that electrodes in the occipital lobe gave the best results. Visual cortex of the brain is situated in the occipital lobe, therefore obtained results are in accordance with electrophysiology. This discovery helps us to make further measurements of the same subject much easier and gives an insight into the diversity of brain functions depending on the location on the scalp.

• Keywords: elektroencefalografija; elektrode; vidni evocirani potencijali stabilnog stanja; kanonska korelacija.
• Keywords (english): electroencephalography; electrodes; steady-state visual evoked potentials; canonical correlation.
• Language: croatian
• URN:NBN: urn:nbn:hr:168:482278
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 08:01:04