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Improved Methodologies for the Simultanoeus Study of Two Motor Systems: Reticulospinal and Corticospinal Cooperation and Competition for Motor Control

Ortiz-Rosario, Alexis
http://rave.ohiolink.edu/etdc/view?acc_num=osu1468886309

Abstract Details

2016, Doctor of Philosophy, Ohio State University, Biomedical Engineering.
The aim of this dissertation is to study methodologies and approaches used to enhance the understanding of how the corticospinal and reticulospinal systems cooperate and compete to recruit muscles. These motor systems have not been studied in a combined experimental design, nor have they been evaluated under novel analytical methodologies. The goal of this dissertation is to disseminate preliminary discovery of how these two motor systems combine their behavior under stimulation and propose novel methodologies to improve future work in this field. The dissertation will begin with a short introductory chapter (Chapter 1) followed by a review on brain-computer interfaces (Chapter 2) as a benchmark for what this work could lead to. The following chapters will encompass experiments performed to better understand and improve methodologies for these two motor systems. The experiments can be generally subdivided in neuroscience and biomedical engineering approaches of understanding these systems. Chapters 3 and 4 will explore neurophysiological circuits these systems might work through and how these two systems cooperate and compete to recruit muscles of the upper limb. Chapters 5 and 6 will present novel methodologies developed to help study these systems. Chapter 5 presents a novel isolation methodology using the wavelet transform and a statistical thresholding approach. Chapter 6 presents a methodology using multiple signal classification (MUSIC) to identify similar firing frequency profiles from cells to better understand their roles in movement. Chapter 7, the final chapter, will present closing remarks on how these discoveries and methodologies will help the field of neuroscience and biomedical engineering. This chapter includes improvements to previous experiments and future questions that rose from such. The final remark is how future brain-computer interfaces could potentially take information from subcortical motor systems (such as the ponto-medullary reticular formation) into account for future applications.
Adeli Hojjat (Advisor)
John A. Buford (Advisor)
Thomas J Hund (Committee Member)
194 p.
Biomedical Engineering; Computer Science; Neurosciences
reticulospina system, corticospinal system, signal processing, multiple signal classification, wavelet transform, gaussian mixture model, stimulus trains, principal component analsys

Recommended Citations

Citations

  • Ortiz-Rosario, A. (2016). Improved Methodologies for the Simultanoeus Study of Two Motor Systems: Reticulospinal and Corticospinal Cooperation and Competition for Motor Control [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468886309

    APA Style (7th edition)

  • Ortiz-Rosario, Alexis. Improved Methodologies for the Simultanoeus Study of Two Motor Systems: Reticulospinal and Corticospinal Cooperation and Competition for Motor Control. 2016. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1468886309.

    MLA Style (8th edition)

  • Ortiz-Rosario, Alexis. "Improved Methodologies for the Simultanoeus Study of Two Motor Systems: Reticulospinal and Corticospinal Cooperation and Competition for Motor Control." Doctoral dissertation, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468886309

    Chicago Manual of Style (17th edition)

osu1468886309
578
© 2016, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.