Abstract #1327
The effect of age on wide-view retinotopic mapping of central and periphery visual areas
Wei Zhou 1,2 , Eric R Muir 1,3 , Jinqi Li 1 , Crystal Franklin 1 , and Timothy Q Duong 1,2
1
Research Imaging Institute, University of
Texas Health Science Center, San Antonio, Texas, United
States,
2
Radiology,
University of Texas Health Science Center, San Antonio,
Texas, United States,
3
Ophthalmology,
University of Texas Health Science Center, San Antonio,
Texas, United States
The purpose of this study was to investigate the effects
of age on retinotopic mapping measurements with a
relatively wide view to include central and periphery
vision areas. By setting up wide-view checkboard
stimulation, the boundaries of visual fields were
defined. Our results demonstrated that central visual
areas of older subjects exhibited weaker BOLD responses
for central stimulation (0~45) but stronger BOLD
responses for periphery stimulation (45~90), compared
to younger subjects. These findings indicated there are
central vision loss and neural reorganization with age.
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