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Biomedical Engineering and Bioengineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2013

Marquette University

Bioimaging and Biomedical Optics

Articles 1 - 2 of 2

Full-Text Articles in Biomedical Engineering and Bioengineering

Characterization Of Two-Dimensional Oculomotor Control During Goal-Directed Eye Movements In Humans, Vincent Dang Oct 2013

Characterization Of Two-Dimensional Oculomotor Control During Goal-Directed Eye Movements In Humans, Vincent Dang

Master's Theses (2009 -)

Oculomotor control is a subset of sensorimotor control that allows humans to make extremely accurate eye movements for ADL. Impairments to oculomotor control can increase the impact of sensorimotor control deficits, especially in neurodegenerative diseases such as MS. Here, a two-dimensional computational control system of saccades and smooth-pursuit eye movements was compiled from literature to systematically characterize oculomotor control in eight visually-healthy humans as a precursor to studying the relationship between oculomotor and sensorimotor control in patient populations. Subjects visually tracked a single dot on a 41 x 30.5 cm monitor in a dark room while eye positions were ...


An Fmri Study On Supra-Spinal Contributions To Upper And Lower Limb Motor Control, Shancheng Bao Jul 2013

An Fmri Study On Supra-Spinal Contributions To Upper And Lower Limb Motor Control, Shancheng Bao

Master's Theses (2009 -)

The differences in the neural mechanisms contributing to upper and lower extremity movement have not been fully elucidated, and this might be a factor that leads to the ineffectiveness of rehabilitation techniques for most stroke survivors. It is unclear whether therapies designed for upper extremities should also be used for the lower extremities, and vice versa. In this study, fMRI was used to examine the supraspinal control of UE and LE movement in both neurologically intact individuals and people with post-stroke hemiparesis. We compared the location, volume, and intensity of brain activity associated with upper and lower extremity pedaling and ...