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Computational
Neuroscience
The
rapidly growing field of Computational Neuroscience holds great
promise for enhancing the understanding of the functions of genes
and proteins within nerve cells, as well as the interactions responsible
for storing information and generating behavior. Pairing computer
science with biomedical research facilitates deeper insight into
mechanisms of complex biological systems, including the most complex-the
brain. Computational Neuroscience includes mathematical modeling
, computer-assisted research that enables scientists to understand
complex biological systems, and also includes information management
, whereby computer technology is exploited to understand, manipulate
and disseminate the vast amounts of data being generated by the
scientific enterprise.
Mathematical
Modeling
Mathematical modeling represents in computational terms borrowed
from physics and engineering, components of neural systems. One
of the first examples following the early adoption of mathematical
modeling is the electrical activity of the squid axon by Hodgkin
and Huxley in 1952. Following the completion of the human genome,
however, more emphasis has been placed on the use of mathematical
modeling where equations express regulation of the genes and their
encoded proteins. Computer simulations can display and even predict
behavior of neural systems once mathematical models of the gene
and protein networks are developed. Computational approaches will
also enable an understanding of the interaction of the signaling
pathways and the electrical activity of neurons. Finally, modeling
will be used to examine how the interconnections of neurons lead
to information processing and behavior, thus playing an essential
role in developing molecular approaches to prevent and treat diseases.
Information
Management
Computational
approaches also present the challenge of managing the plethora of
data produced and this issue has been addressed. In September of
2004, The National Institutes of Health (NIH) launched the first
four National Centers for Biomedical Computing, part of the NIH
Roadmap for Medical Research. The Centers include centralized data
management tools and a national software engineering system, which
allows scientists anywhere in the country to share and analyze data.
Training
Most
Computational Biomedicine scientists were not trained in the field
directly, and few undergraduate or graduate programs exist for students
interested in specializing in this field.
In
a collaborative effort through the Gulf Coast Consortia of Houston
(GCC), institutions throughout the Houston/Galveston area have joined
forces and consider as one of their top goals, training new scientists
at the intersection of biological sciences with computational and
physical sciences. The NRC contributes to the training initiative
in Theoretical
and Computational Neuroscience within the GCC, aiming
to eliminate cross institution redundancies, while creating a more
advanced and comprehensive graduate program.
Research
Several
NRC laboratories conduct separate studies as part of this growing
field. Current projects include modeling molecular networks
underlying circadian rhythms and neuronal plasticity; modeling neural
networks underlying simple behaviors such as reflexes, feeding and
locomotion; modeling neural networks underlying vision; and modeling
neural systems underlying learning and memory. These computational
models provide new insight into the operations of molecular, cellular,
network and systems processes, which contribute to behavior and
cognitive function.
A
number of NRC members use a supercomputer cluster equivalent to
180 computers linked together, to classify, store and analyze the
large amount of data produced during research. The supercomputer
is housed in the School of Health and Information Sciences, but
shared by various NRC members whose research involves image and
signal processing, data mining and information retrieval.
Neuroscientists
are utilizing computer technology to expedite the move toward a
better understanding of the complex inner workings of the brain.
It is the advances in this computer technology that are fundamentally
changing the discovery process with still unknown, but certain beneficial
outcomes to medicine, and ultimately to human health.
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