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FY2010 - Oak Ridge National Laboratory

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Seed Money Fund—<br />

Measurement Science and Systems Engineering Division<br />

MEASUREMENT SCIENCE AND SYSTEMS ENGINEERING DIVISION<br />

00510<br />

Development of Computational Methods for Neurobiological<br />

Imaging Research<br />

Shaun S. Gleason, Ryan A. Kerekes, Richard Ward, Barbara G. Beckerman, Michael Dyer, David<br />

Solecki, and Stanislav Zakharenko<br />

Project Description<br />

Neurobiologists are interested in understanding how neurons form complex synaptic circuits during<br />

development and how these processes are perturbed in diseases. Neuronal migration and maturation<br />

during development play a critical role in how neurons ultimately function. Development of<br />

computational methods to extract pertinent information from the large three- and four-dimensional image<br />

data sets has not kept pace with available imaging technologies. This project will develop a set of analysis<br />

methods that allows researchers to discover relationships between the anatomical and migratory<br />

characteristics of neurons and their ability to function in a network of cells. These methods will provide a<br />

foundation upon which a comprehensive suite of tools can be developed. The biological questions that<br />

these tools will address strike at the foundation of many neurological disorders including Alzheimer’s,<br />

Parkinson’s, and schizophrenia.<br />

Mission Relevance<br />

Although the initial application of this research is for analysis of cellular morphology and migration<br />

within animal models, the results may be applicable to cellular analysis of morphology and migration for<br />

plant materials targeted for bioenergy. In addition, the techniques learned during development of motion<br />

tracking methods for neuron cells may be useful for motion detection in security applications where<br />

people must be monitored in a facility. The same concept may be applied to intelligent energy delivery<br />

(e.g., of light, and heating, ventilating, and air conditioning) by monitoring and tracking the location of<br />

people within a facility and delivering energy based on location and activity, or task. This work will<br />

benefit the <strong>National</strong> Institutes of Health (NIH). The project addresses the needs of a program entitled<br />

“NIH Blueprint for Neuroscience Research,” which looks for new methods, tools, instrumentation, etc.,<br />

that will have benefit to multiple <strong>National</strong> Institutes, such as Neurological Disorders and Stroke, and<br />

Biomedical Imaging and Bioengineering. Also, the project can benefit the Department of Defense,<br />

particularly in the areas of neuronal interfacing for prosthetics and traumatic brain injury.<br />

Results and Accomplishments<br />

Our collaborators at St. Jude Children’s Research Hospital provided us with a large data set of retinal<br />

horizontal neuron imagery. The dataset consists of 95 confocal image stacks of developing mouse retinas,<br />

each covering an area of 200 200 μm and a depth of roughly 150 μm and containing on the order of<br />

10-20 neurons. The images were acquired from both wild-type and knockout genotypes at various stages<br />

229

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