alex orellana-mizell

Research

From 2007 to 2010 I was an undergraduate research apprentice in the University of Georgia Biomechanics Laboratory under the direction of Dr. Cathleen Brown-Crowell. I prepared test subjects for motion capture, recorded their movements, labeled datapoints for frames of footage, processed data with SPSS, and gathered results in spreadsheets.

Brown CN, Bowser B, Orellana A. Dynamic postural stability in females with chronic ankle instability. Medicine and Science in Sports and Exercise. 2010;42(4):2258-2263. Impact Factor: 3.707; Top fifth of sport science journals. Acceptance rate: 30%.

Brown CN, Bowser B, Orellana A. Lower extremity joint kinematics in individuals with chronic ankle instability during a lateral single leg jump landing. 2010 National Athletic Trainers' Association Annual Meeting – Poster Presentation. Philadelphia, PA, USA. Journal of Athletic Training. 45(3)S-108, 2010.

Brown CN, Bowser B, Orellana A. Sagittal plane kinematics in individuals with chronic ankle instability during single leg jump landing. 2009 National Athletic Trainers' Association Annual Meeting – Poster Presentation. San Antonio, TX, USA. Journal of Athletic Training. 44(3)S-18, 2009.

Brown CN, Orellana AM, Larson R, Schik C, White LJ. Somatosensory deficits in individuals with multiple sclerosis. 2009 Consortium of Multiple Sclerosis Centers Annual Meeting – Poster Presentation. Atlanta, GA, USA. Published online.

Orellana AM, Brown CN, Fu YC, Larson R, Schik C, White LJ. Correlating instrumented and clinical measures of balance. 2009 Consortium of Multiple Sclerosis Centers Annual Meeting – Poster Presentation. Atlanta, GA, USA. Published online.

In 2014 I joined the University of Wisconsin Vision Science Lab under the direction of Dr. Bas Rokers. I created animations to demonstrate particular optical effects during presentations and assisted graduate researchers in illustrating their findings.

Click to view PDF.

For a complete list of my published research, please refer to my resume.

Click to view PDF.

For a complete list of my published research, please refer to my resume.

Click to view PDF.

For a complete list of my published research, please refer to my resume.

Click to view PDF.

For a complete list of my published research, please refer to my resume.

WHITE MATTER PATHWAYS

This animation demonstrates the white matter pathways of the brain, charted by using magnetic resonance imaging (MRI) to track water diffusion in small cross sections. Neurons, the cells of the brain, have a Myelin Sheath, a coating of fat-containing cells that insulate their axons from electrical activity, and water moves more easily along these barriers than across them.

This animation was made in collaboration with graduate researcher Brian Allen of the Rokers Vision Laboratory at the University of Wisconsin.

THE PACMAN EFFECT

This animation demonstrates the "Pacman Effect." Also called the "chaser illusion," it combines the phi phenomenon illusion, an afterimage effect, and Troxler's fading. If you focus on the center, you will see a yellow dot filling the successive empty spaces and 'eating' the blue dots.

This animation was created for Dr. Bas Rokers of the University of Wisconsin to highlight limitations of human eyesight in the operation of automobiles.

THE BARBERPOLE EFFECT

This animation demonstrates the "Barberpole Effect." A limited aperture with an elongated axis causes the apparent motion of lines to change direction. Looking at the moving lines through small openings will make the lines seemingly shift in direction. Asphalt and yellow lines are in reference to road markings.

This animation was created for Dr. Bas Rokers of the University of Wisconsin to highlight limitations of human eyesight in the operation of automobiles.