Ellipsoidal Head Model and Reduced-rank Beamforming for Eeg/meg Source Estimation

Chicago, Illinois " Those who seek should not stop seeking until they find. When they find, they will be disturbed. When they are disturbed, they will rule, and when they rule, they will rest. " The Gospel of Thomas 2:1-4 iii ACKNOWLEDGMENTS My deepest gratitude goes to my advisor Prof. Arye Nehorai for his permanent support, his excellent guidance, and patience during my graduate studies. This thesis would not be possible without his genuine effort and help at each and every step. I want to thank Dr. Hubert Preissl and his group at the University of Arkansas at Little Rock, for inviting us to collaborate with them and introducing us to the fabulous field of fetal research. I am thankful to Prof. Dr. Wim van Drongelen who kindly served as committee members. Research in Applied Mathematics and Systems (IIMAS, Mexico) for encouraging me to pursue graduate studies abroad. for their friendship, advise, and illuminating conversations on a variety of topics. A special mention of gratitude goes to my very best friend Daniela Donno for her love and support. Thanks also to Giselle Garduño and Lisbeth Alarcón for their friendship and support. Most deeply and certainly, I thank my family for their endless support during all the years of my Ph. D. education.