Cecil Chern-Chyi Yen1, Hiro Fukuda2,
Seong-Gi Kim2,3
1Bioengineering, University of
Pittsburgh, Pittsburgh, PA, United States; 2Radiology, University
of Pittsburgh, Pittsburgh, PA, United States; 3Neurobiology,
University of Pittsburgh, Pittsburgh, PA, United States
BOLD
fMRI has been widely used to map the neuronal activity of the cortical visual
areas in mammals. In addition, the subcortical visual regions such as lateral
geniculate nucleus (LGN) have also been successfully mapped in humans.
However, unlike visual cortex, our understanding about the spatiotemporal
BOLD response induced by visual stimulus in LGN is relatively poor. In this
study, we investigated the BOLD response in the cat primary visual cortex
(A17) and LGN. We found the onset time different in these two areas and the
contamination of draining vein in LGN.
Keywords