Scalp current density mapping during motor task with passive viewing of visual stimulation

The study on the brain is an inexact science. Since the advent of medical technology, humans have been trying to study and understand the brain as the most complex organ in the human anatomy. The activity of human brain can be measured using electroencephalograph (EEG). However, EEG measurement in t...

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Main Author:	Abu Bakar, Shahrazie Zainal
Format:	Thesis
Published:	2009
Subjects:	QA75 Electronic computers Computer science
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spelling	my-utm-ep.120272021-05-27T03:10:39Z Scalp current density mapping during motor task with passive viewing of visual stimulation 2009-11 Abu Bakar, Shahrazie Zainal QA75 Electronic computers. Computer science TK Electrical engineering. Electronics Nuclear engineering The study on the brain is an inexact science. Since the advent of medical technology, humans have been trying to study and understand the brain as the most complex organ in the human anatomy. The activity of human brain can be measured using electroencephalograph (EEG). However, EEG measurement in the form of Scalp Potential (SP) is noisy and have poor spatial distribution, thus it is more appropriate for topographic mapping to be done for Scalp Current Density (SCD). The "10-20" system or "International 10-20" system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG test or experiment. In this system, one uses fractional distances between previously placed electrodes to locate new electrodes and this has led to the use of scalp potential distribution mapping. This project use data taken from real scalp surface of previous research involving 10 test subjects, apply Spherical Spline Interpolation (SSI) methods to map SCDs to a 2-D plane and create color coded topographic maps showing SCD activities. The results show changes in brain wave pattern when a motor task (constant pressure from FDI muscle) is interrupted by a series of visual stimulations in the form of images and finally analysis is done on the results based on established theories. 2009-11 Thesis http://eprints.utm.my/id/eprint/12027/ masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering [1] Mhmed M. Algrnaodi. Mapping of Scalp Potential by Spherical Spline Interpolation. Universiti Teknologi Malaysia, 2008 [2] Parent, A; Carpenter MB (1995). Carpenter's Human Neuroanatomy. Williams & Wilkins. [3] Michael S. Gazzaniga, Diana Steen and Bruce T. Volpe. Functional Neuroscience. New York; Harper and Row Publisher. 1979 [4] Norlaili binti Mat Safri. Effects of Externally Applied Sensory Simulation on the motor Cortex-Muscle Synchronization in Human. Kumamoto University. PHD thesis. 2006 [5] Norlaili Mat Safri, Nobuki Murayama, Tomohiko Igasaki and Yuki Hayashida. Effects Of Visual Stimulation On Cortico-Spinal Coherence During Isometric Hand Contraction In Humans. International Journal of Psychophysiology. 2006. Volume 61 (Issue 2) : 288 – 293 [6] Norlaili Binti Mat Safri. Human Brain-Muscle Coupling with Division of Attention: Hand Grip with Concurrent Visual Display. Universiti Teknologi Malaysia. 2008 [7] Ernst Niedermeyer, Fernando Lopes da Silva. Electroencephalography: Basic Principles, Clinical Applications, and Related Fields. Lippincott Williams & Wilkins. 2004 [8] G.R. Shaw' and Z.J. Koles. On the Optimality of Spherical Spline Interpolation for EEG Topographical. Department of Applied Sciences in Medicine Faculty of Medicine, University of Alberta Edmonton, Alberta T6G 2G3, Canada. 1993. [9] F.Perrin, J. Pernier, O.Bertrand and J.F.Echallier (12 September 1988). Spherical Spline for Scalp Potential and Current Density Mapping. U280-Inserm, 151 Cours A. Thomas, 69003 Lyon (France). [10] F.Perrin, J. Pernier, O.Bertrand and J.F.Echallier (24 March,1986). Mapping of scalp potentials by surface spline interpolation. U280- INSERM, 151 Cours Albert Thomas, 69003 Lyon (France). [11] Francols Perrrin, Olivier, Bertrand, and Jacques Pernier. Manuscript received march 24, 1986. Scalp Current Density Mapping: Value and Estimation from Potential Data. IEEE log number 8612607. [12] Thomas C Ferree. Spline Interpolation of the Scalp EEG. Electrical Geodesics, Inc. Technical Note. 2000. [13] Wahba, G., Wendelberger, J. (1980). Some new mathematical methods for variational objective analysis using splines and cross validation. Monthly Weather Review 108: 1122-1143. [14] Wahba, G (1981). Spline interpolation and smoothing on the sphere. SIAM J. Sci. Stat. Comput. 2(1): 5-16.
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	QA75 Electronic computers Computer science QA75 Electronic computers Computer science
spellingShingle	QA75 Electronic computers Computer science QA75 Electronic computers Computer science Abu Bakar, Shahrazie Zainal Scalp current density mapping during motor task with passive viewing of visual stimulation
description	The study on the brain is an inexact science. Since the advent of medical technology, humans have been trying to study and understand the brain as the most complex organ in the human anatomy. The activity of human brain can be measured using electroencephalograph (EEG). However, EEG measurement in the form of Scalp Potential (SP) is noisy and have poor spatial distribution, thus it is more appropriate for topographic mapping to be done for Scalp Current Density (SCD). The "10-20" system or "International 10-20" system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG test or experiment. In this system, one uses fractional distances between previously placed electrodes to locate new electrodes and this has led to the use of scalp potential distribution mapping. This project use data taken from real scalp surface of previous research involving 10 test subjects, apply Spherical Spline Interpolation (SSI) methods to map SCDs to a 2-D plane and create color coded topographic maps showing SCD activities. The results show changes in brain wave pattern when a motor task (constant pressure from FDI muscle) is interrupted by a series of visual stimulations in the form of images and finally analysis is done on the results based on established theories.
format	Thesis
qualification_level	Master's degree
author	Abu Bakar, Shahrazie Zainal
author_facet	Abu Bakar, Shahrazie Zainal
author_sort	Abu Bakar, Shahrazie Zainal
title	Scalp current density mapping during motor task with passive viewing of visual stimulation
title_short	Scalp current density mapping during motor task with passive viewing of visual stimulation
title_full	Scalp current density mapping during motor task with passive viewing of visual stimulation
title_fullStr	Scalp current density mapping during motor task with passive viewing of visual stimulation
title_full_unstemmed	Scalp current density mapping during motor task with passive viewing of visual stimulation
title_sort	scalp current density mapping during motor task with passive viewing of visual stimulation
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2009
_version_	1747814887579451392

Scalp current density mapping during motor task with passive viewing of visual stimulation

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