what type of graph represents the gray matter in the brain what is visualization what is a nondirected graph what is the purpose of a nondirected fmri graph? can we graph gray matter? why is a graph visualization necessary which part of the brain is the gray matter region how to graph white matter what is the graph visualization tool what type of visualization of the gray matter in our brain why use fmri visualization tools what is the purpose of a nondirected graph what is a nondirected graph why use a graphviz what kind of graphs can i visualize what kind of graph can represent all the gray matter? what type of graph do you use to visualize the gray matter why would a diagram not show the color of the middle sagittal plane? what is the purpose of a nondirected graph what is the visualization of the gray matter layer