Yes
NITRC
FSL extensions
Yes
FSL extensions is a reference for modifications, extensions, and utilities for the FMRIB Software Library (FSL).
FSL extensions
MR, Parkinson Disease, Alzheimer Disease, Schizophrenia, Multiple Sclerosis, Bipolar Disorder, Depression, Diabetes Mellitus, Creutzfeldt-Jakob Syndrome
http://www.nitrc.org/projects/fsl_extensions/, http://www.nitrc.org/projects/fsl_extensions/