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Abstract #3070

Long-Term Survival Study Showing Aging Effect on the Sensory Function of Peripheral Nervous System in Rats Using FMRI/fcMRI Under 9.4 Tesla

Rupeng Li1, Jack B. Stephenson IV2, Nicholas Flugstad2, Xiping Liu3, Christopher Pawela1, Ji-Geng Yan2, Hani S. Matloub2, James S. Hyde1

1Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States; 2Plastic Surgery, Medical College of Wisconsin, Milwaukee, WI, United States; 3Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, United States

The influence of aging effect on peripheral sensory function was investigated using BOLD fMRI and fcMRI on rats. Results shows the sensory network in the cortex peaks at adult age. At the same time, sensory network at senile age shows strongest inter-voxel correlation, which indicates a more optimized structure at this period.

Keywords

activation adult aging animal animals ates band best biological biophysics block bold brain challenging chosen closed cognitive college common consistent constant correlates correlation correlations cortex covering despite determine develops displayed documented done efficiently excellent exposed fact feature filter finding fisher function gaps grow hand hemispheres hows human illustrate incision indicates infusion inter jack kernel late leaving limits mans matrix mature median medical meters might month months nerve nervous network onto overall patient peaks period peripheral place plastic pocket post preparation process prove rats reformed registered representation resting reveal scanned seed senile sensory seven short shrinks side significantly since slice slices span spreads stimulate stimulation structure studied studies system template term threshold trend trunk twice unction usually young