Computational
neuroscience is one of the newest subcategories of neuroscience, it uses
machine learning and single cell modeling to model brain function. The
information collected from the brain is put into terms that can be understood,
by comparing it to the way a computer processes information. With the
collection of data and comparing it to a known factor, neurologist hope to find
out how the brain processes information and translate it into a response.
From
what these neuroscientists have learn about information processing of the
brain, we now not only better understand the brain but also the body and how it
works as a whole. One can think of the brain as the hard drive and the ram,
while the spinal cord is all the wiring that attaches the keyboard to the
monitor and the monitor to the hard drive. Without these wires being correctly
connected, parts or the whole computer will not work correctly and same for the
brain. This understanding has led great advances in helping those who suffer
from spinal cord injuries. With spinal cord injuries, the wiring between the
brain and the spinal cord become severed causing problems such as paralysis or
even death.
With
the understanding gained from studying that wiring between the spinal cord and
the brain, researchers have made it possible to reconnect those severed wires,
so that someone with paralysis can regain use of their limbs. 24-year-old Ian Burkhart from Dublin, Ohio, became one of
the first people to have their limbs reanimated after breaking his neck, damaging
his spinal cord. Researchers, with the past research, were able to see how
after injury the brain does reorganize but not as much as originally thought.
While some connects are reorganized, many are just left severed and unable to
send neural impulses, which leads to paralysis. With the help of fMRI,
researchers locate the motor cortex and implant a chip, that when activated
will send electrical signals to the limbs. With this discovery, Ian Burkhart
has begun to regain his independence with the use of his arms.
Not only has computational neuroscience lead to the reanimation
of arms, but it has also found a way to give quadriplegics the ability to walk
again. The research led to the
development of a ‘stentrode, a 3cm-long stent containing 12 electrodes,
which is placed in the motor cortex through the jugular vein. With the
help of a 'stentrode', which is a 3cm-long stent containing 12
electrodes, placed in the motor cortex through the jugular vein, allows
the motor cortex to send neural signals to a computer interface that will cause
movement in a bionic limb. This has led to quadriplegics to walk using the
combination of the ‘stentrode’ and bionic legs as well as use their arms again.
This discovery has given back the independence and the freedom that has been
taken away by the damage done to their spinal cord. This is not just about
giving people the ability to freely move back, but also give people their lives
back. This technology is growing every day and is projected to be able to be
used with other medical illnesses that cause a disability, such as seizures and
motor neuron disease.
Works Cited
Albert, Mark V. "The Limits of Relying on Correlations in Traditional Neuroscience." Neuroscience Seminar. Loyola University Chicago, Chicago. 26 Sept. 2017. Lecture.
Geddes, Linda. "First Paralysed Person to Be 'reanimated' Offers Neuroscience Insights." Nature News. Nature Publishing Group, 13 Apr. 2016. Web.
May Professor of Neurophysiology, Florey Institute of Neuroscience and Mental Health, Clive. "How 'mind-controlled' Bionic Devices Could Help Quadriplegics Walk." The Conversation. N.p., 9 Feb. 2016. Web.
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