Time course MRI data is acquired from the hippocampal region of the brain and processed to produce two indices that are a measure of the functional connectivity between locations therein. The MRI data is acquired while the brain is substantially at rest and the spontaneous low frequency component of the time course data at each location in the hippocampus is extracted and compared in a cross-correlation process. Also acquired is fMRI data which indicates those locations in the brain that should be included in the index calculations.
MRI method for producing an index indicative of brain disorders