The MATLAB Neural Network Toolbox is available on the CCR cluster. Any academic user can access this toolbox. There are many tutorials and examples on the MathWorks website.
The MathWorks Fit Data with a Neural Network tutorial is a good place to start learning to use this toolbox. This tutorial uses Matlab NN GUIs. Use the OnDemand Portal to launch a remote visualization session. More details about remote visualization in OnDemand can be found in this KB article